Thank you for this information. Just been told I need varifocals and I’m getting them soon. You explained this so much better than the people in Specsavers
By far the best explanation and demonstration of real world results for a reasonably nervous 50 year old who’s finally committed to Varifocals. Thank you, although mine were measured using the marker pen method 🙄
WOW! What an excellent explanation! I am a thirty-eight year old professional golfer and bought my first pair of progressives from Costco about a month ago. I simply could not adapt even though I have a very minimal prescription. I went to an independent ophthalmologist today who fitted me with Varilux X lenses. The difference between her exam and the Costco optometrist's was monumental. The doctor today spent forever measuring pupillary distance, segment height, etc., whereas Costco spent about 15 seconds. Thank you for your incredibly informative video. I wish I had you there with me today to pick out frames! Despite your absence, my wife and I chose a very nice pair of Oliver Peoples, lol. Again, thank you for this very informative, dumbed down explanation of how progressives work.
Hey John, thanks so much for your feedback! I really appreciate it. Oliver People's are pretty nice, good choice and good luck with your new glasses. - Robert
@John Marlowe I would have been very discouraged towards my new progressive lenses if this had been the first video of progressive lenses I had watched lol
@@lightbulb1982 Of course everyone is different but our AR software is the closest simulation of varifocals/progressive possible. The idea is not to discourage or encourage but to demonstrate the pros and the cons.
Fantastic video. Explains why I've been let down by various opticians with Vari's and have resorted to an old style bi-focal for the time being. My wife and I shall be visiting very soon! Thanks again! :-)
By far the best video I have watched regarding progressive glasses - and I have watched a lot! Thank you so much.... Still debating between these and traditional bifocals...
Thank you for showing me about varifocal lenses visually. Explanations are all brilliant but with out visualization, what's being said is difficult to comprehend for some people. Showing people what is being explained makes life easier for people to comprehend. My first experience 5 years ago with varifocal lenses left me angry, frustrated and bitter because i couldn't see as the bit i needed to see with was the smallest area possible with blur on either side which was making me sick and dizzy amongst the anger and frustration. i went back to the opticians and the customer service was horrendous the woman was very rude which was causing my anxiety and frustration worse. Its taken me 5 years to go back to another Optician and ive brought new varifocal lenses with i hope are the widest area possible on my middle area. but i still left there worried as my comprehension on the lenses was still muddled.. finding your video has helped me understand a heck of a lot more being able to see what was being explained.. so thank you
I'm sorry you had a bad experience - it's far too common in our industry. I hope the new optician does a better job for you, and I'm glad this was helpful in hopefully giving you the pros and cons so you know what to expect
Great explanation and demonstration of varifocals and the pros and cons. I like your scientific approach to get the most accurate measurements with the Visufit 1000. I had my eye test last October at Specsavers. It all felt a bit rushed. I just picked the first rectangular frame, had the pen dots on the lenses, chose the most expensive option and was really glad to leave. Luckily they work fine. Next time if I can't get to your store I'm definitely going somewhere with digital equipment. That's why I'm kind of hooked on watching your channel Rob. What was a chore and pretty boring topic has become fascinating and engrossing really. Thanks 😀
All the varifocals you made for me have the best clarity I’ve ever experienced. The office lenses also offer easy amazing vision too. Thanks Rob for making me such amazing lenses and glasses which I love wearing every day 🤓
Thank you so much .I have glaucoma and tried to get the best lenses possible. i found that if i titled my head downwards looking practically over the top of the lense it became much sharper ,especially for television. Tried to explain to optician ,still didn't make any difference. At least now i can go to the opticians fully armed wih all the info.
Thanks for the great explanation and augmented reality view! If your shop was in Preston, Melbourne, Australia I would come buy my progressive from you, alas :)
If i had the money am sure making you my number one but am in Trinidad and you and wayyy over there .am still waiting to purchase my new glasses since every year i need to test my eyes . With your upgrad glasses in the caribbean here prices are very high on frames ,I must say you are the best . Looking at you listening to your voice on how you explain I wish you werr here in Trinidad . Thank you very much ,makes me wiser on purchasing my nee glasses .
Hi. Great explanation. I have recently had my first pair of varifocals from Specsavers. I've already had the frame changed as I just couldn't get on with them. Now I'm getting more used to them, I did go for the top range so less distortion, but i feel they are much better if I raise/tilt the frame about 1cm above my ears. They did the pen spot, no other measuring. Also I think digital lenses would suit me better but this wasn't mentioned. It's very expensive to not be quite right.
When you're lifting the frame above your ears, that is adjusting the pantoscoptic tilt which I mentioned later on in the video. So ask them to adjust the panto and that should help. Good luck :)
Excellent job Robert. This was very good, smooth, and clear presentation with proper detail on these lenses. I loved that you actually used visuals and allowed us to see and better understand the differences and limitations. I am currently struggling with two new pair of glasses with Hoya lenses. I had no issues with glasses 2 years ago and according to my doctor my vision has barely changed. My sport , wrap around RX glasses with Shamir lenses work perfectly but done by different lab. I hope my Hoya lab can figure out why their lenses are not allowing me to see clearly intermediate nor short distance. Your presentation gave me better idea of what questions to ask and how should my lenses be set up. Keep up the good work, keep us updated on newest technology and perhaps some videos on increasingly popular options of sport wrap around and mirror coatings ( flash and solid) and how a person see from inside, how the glasses look from outside and what colors are not appropriate for specific light conditions. Also, what are the innovations, if any, for ordering glasses via internet from other optical centers? Distance ordering allows better access to lens brands that one may not have locally. Thank You again for your videos.
Great video. I've been told I need Varifocal and went to Asda this morning. Watching this video as informed me that they might not be the best place. They did the pen marker on the glasses and I am not filled with confidence. Nothing was said about lense types. I feel it's not going to work from Asda as they are non specialist.
Same here! Really informative video. I can’t believe David Clulow opticians just eye-balled me while measuring and used a plastic scale and a marker to mark the spot in about 10 seconds.
@@amitandutube I think most places do the marker pen, I have only been to one place that has a machine to get the right position. And I have been to many opticians.
Hi my Glasses is progressive you are a Gineous ,God give us gifts in different ways ,and you got it right on point your explaination is great perfect i wish you were my Optritionest .Job well done .
This story isn't over yet but well over 10 years ago my (independent) optician recommended me varifocal lenses. After an old fashion eye test (well before the current auto hi tech type machines they use now) and using Nikon lenses, I was happy the first moment I put them on. I bought a second spare frame and he fitted them out with the same prescription and make of Nikon lenses. Again, perfect. Good focus, close, medium and long distances. No blurring at the sides. Consistent at all viewing angles. Last month, after many years, the temple arm on one pair finally broke. My optician sadly retired last year. I happened to go to Boots. I should of asked, please copy my existing prescription but I didn't. I had a full hi tech bells and whistles eye test - yes, a change to my my current prescription. I chose the more expensive Zeiss lenses - they were recommended to me in the shop. I picked them up last week. I didn't take them home. They were awful on many levels. The reading zone came up the lens too far on my left eye and the right, everything looked diminished in size. Looking sideways left and right was blurred. I shall now ask Boots to simply copy my old perscription and hopefully I'll be happy. Is the Nikon zone arrangement better than Zeiss's, yes/no? If so, why is there a difference? I don't know but I now understand there are huge inconsistencies in varifocal lenses and there shouldn't be. At these asking prices, the industry needs to tighten up and make standards that are adhered to. Otherwise it's a time wasting hit and miss game.
@@amitandutube Hi, I asked for a full refund and received one. The whole episode has left me unimpressed by eye tests, even when using hi-tech testing equipment. So, no replacement yet and my urgency to replace my old pair has evaporated I'm afraid to say. I'll take breath and try again one day but I'm not in a hurry to.
@@patrickculleton9939 thanks for the reply. My current varifocals was done manually with the “market dot on lens” method but has worked well! Maybe it’s because I’ve got the Varilux X series or maybe a low prescription. I need a new pair now and am nervous everyone’s using these hi tech digital machines now.
@@patrickculleton9939 SOmeone with long experience in this working sector, and decent wits, told me that a lot of those who use the new revolutionary measuring instruments aren't up to using them properly/interpreting the results right, and they (not the instruments, but the optometrists who use them) end up by causing more troubles vis-a-vis an old-fashioned measurement done by even an optometrist at the same level as their own. I mean, it looks like using these advanced "tenth of millimiter" machinery's results requires more wits than the old-fashioned methods. And wits aren't exactly widespread, it also appears.
Thanks so much for this detailed and informative explanation! I'm in the US and unfortunately traveling to the UK is cost prohibitive. Do you have any recommendations for places in the US that offer a similar service, or what I might search for to find someone? Thank you!
Very good and helpful as I'm struggling to get used to first pair of varifocals. You mentioned office lenses for those who use computer a lot. I'm short sighted so would these be a single lens for distance or a middle range?
No, office lenses give you a range of distances which is what makes them perfect for an office environment. More info here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Gb6qhi6RfEA.html
I just had a pair of varifocals measured up at Vison Express and they use the marker pen dots for my PD. Hopefully they'll be ok when I receive them. You have me worried now :-(
I went to specsavers and they said i need varifocals. I am upset because i did not expect them to be so horrible to wear. I have headaches whereas befoe I did not. I feel they did not do a good job of explaining things to me. I also believe the best varifocals really depend on the customers work and general lifestyle and for me non of that was explored. Also, my NEAR vision with these varifocals on is no different to when i take them off which makes me wonder whether i do have presdbyopia and need varifocals. why not just distance glasses as before. So my questions. Firstly, is what I have written fair or unfair because of a lack of my understanding. Secondly, how can I get a second opinion eye test and varifocals with you in Preston? I live in Leeds. Will travel if i need to. Specsavers say i have 100 days to return these varifocals if i am not happy. However, the frame I have chose is one I really love. Thanks for reading. PS The varifocals I have were measured up by hand and marker pen - no machinery.
Specsavers say that if you are not happy with your glasses they will change them for two sets of glasses, near and distance free of charge as long as it's within 100 days.
Great video I’ve just paid some £460 for new lenses I was told they are their boost lenses - can’t find the actual definition While walking I’m getting sea sick. The distortion skews everything outside the focal area I said I need the glasses for computer work The area on a screen that is in focus is around 6 cm width. Around two to three words in focus with everything thing else very blurred As I move my head the words tilt at the top opposite to my movement I can barely see anything in focus. It’s like looking through the wrong end of binoculars and seeing a very small area with head movevement like looking through two panes on glass that distort either side of centre. It’s like looking through a spy hole. To read anything on the screen in moving my head in 3 planes to find focus every 6 cm. I’m seeing a lot of word shadows too. To read a standard paperback, I have to move my head three time to read a line of text It’s exhausting! I went to a respectable independent and was told that these were quality lenses. ( my previous glasses bought elsewhere were cheaper including the frame that I’ve reused) Is there a way that I can determine the width of the part of the lens that contains the focal corridor? As they are closed over Christmas I’ll go back in the new year, but I’d rather be armed with some evidence that tge quality of these progressive lenses are not as they have suggested. Thanks
Thank you 😁 It's possible that even the best lenses don't work for certain individuals, so it doesn't necessarily mean your lenses are bad quality. However, the prescription, the lens positioning and the lens design are all crucial... were you measured using a digital measuring system? Are you confident in the eye test? TBH it's red flag if the lens brand you were getting wasn't discussed. Hopefully you will consider visiting us and we can help you get a much better standard of vision.
@@thespectaclefactory I was measured with sharpie dots applied to my old lenses! No, no manufacturer mentioned. Also, I didn’t get my old lenses back so I’m now wondering what will happen if I wish to reject these new lenses and go elsewhere. I’ll just have three bits of frame - the frame is rimless I’m talking to my wife about visiting you It might be tricky as we have 4 small children and unfortunately my father , who would always baby sit, passed away in November. In anticipation, what happens if you post specs out and I’m not happy. It’s bad enough at the moment that I’ve got to go to the place I was tested which is some 20 mins by car! Thanks again
Hi Darren, if you come to us you'll get the very best possible. All the equipment we use is best in class. We can't really do more than that, but if you still experience issues then you can return the glasses for a refund. I understand why you would be apprehensive after a bad experience elsewhere.
Yes, definitely! Bifocal and trifocal lenses have no distortion at all, so some people prefer them. There are downsides though. I'll probably cover this in a video in the future. Make sure to subscribe!
Thank you. That's a clear description that has really helped me to understand a bit more about the way that Varifocals work. I'm still lacking some understanding so perhaps you can offer some help for a new glasses wearer? - I've probably needed them for years but recently got I have glasses for distance only, not strong prescriptions. My close up vision is fine without glasses. I'm struggling with text on a TV ( eg TV guides) at around 2m or more. The single vision glasses clear the TV picture but then I can't read text on my phone. I think I'm confused because for close up I would need no prescription on the lens as far as I can tell. Are Varifocals the solution, and what kind? The standard ones or something like the office type? Or just bifocals? Do you have a posting about this subject? Sph Cyl Axis VA Add N RE -2.00 -1.25 105 6/6 +2.25 N5 LE -1.00 -0.75 95 6/6 +2.25 N5
To work out your reading prescription you would add the 2.25 to the SPH power in each eye. You should notice that this makes your reading prescription for your right eye +0.25 but for your left eye +1.25. So there would be a small prescription for reading at the bottom of your glasses. So varifocals are the best option for you. You need a good type because of the large difference between your 2 eyes - one which compensates for binocular vision (not all do). Come and visit us and we will get you sorted.
@@thespectaclefactory Thanks very much for your explanation, I think I now understand what's being prescribed. I couldn't work out why, if both eyes are different, there be the same amount of compensation applied to both eyes when it seems logic would dictate different additions to get each eye to 0.00. That would seem to give over compensation to my left eye which is counter intuitive. Why don't they just go to 0.00 which would be plain uncompensated lenses which matches what works for me now- no glasses.
@@thespectaclefactory Thanks very much for your explanation, I think I now understand what's being prescribed. I couldn't work out why, if both eyes are different, there be the same amount of compensation applied to both eyes when it seems logic would dictate different additions to get each eye to 0.00. That would seem to give over compensation to my left eye which is counter intuitive. Why don't they just go to 0.00 which would be plain uncompensated lenses which matches what works for me now- no glasses.
@@a1smith All I can say is that according to the eye test you had, your vision isn't perfect for reading even if it seems to be. You will probably notice a different focal length if you open one eye at a time when focussing on near objects. Prescription reading glasses or varifocals would bring both eyes perfectly in focus simultaneously at any distance, allowing your eyes to work binocularly. It's normal to have the same compensation applied to both eyes as generally the muscles in our eyes deteriorate at the same rate (although not always).
I have been using Shamir Workspace for home, office. It works very well. However, on the same frame of 31 mm height, initially segment height was set at 17mm and I didn’t have enough of short and medium vision. Then the segment height was raised to 19mmm and then I lost most if not all of distance (it gave me only 5 feet instead of 10 feet as promised). What happened?
I was an Astigamatic and once the Presbyopia set in, I began wearing progressive that I wore for the next 25 yrs; almost all the time, I used Essilor, the last one was Comfort, except the last time when I went for Zeiss because of a friend. I have had Cataract surgery one half years back and I went for the Toric Lens and dealing with Distance Vision and began wearing Reading Glasses, +2.5 Dioptres both sides for the close work. During the last check up, I have now been advised to wear --1.25 Dioptres for the Distance Vision in addition to the lenses for the reading purposes. How would compare Essilor and Zeiss Lenses? I find now the Essilor has come out with XR and X series also. How do these two compare with Zeiss Smart Life? Does Zeiss also have different types of Progressives Liberty/Physio at one end XR and X at the other?
I have finally decided I take a chance and change from my lined trifocals to a high quality progressive lense. This excellent video appears to show that the intermediate zone would be sufficiently deep vertically to encompass more than just a single line of vertical text or just a narrow sliver of an object. Am I correct in assuming this? I would hate to pay a lot and then be disappointed.
It really depends on how the lens is set up. I would be very careful and really make sure you try them with a very good optician, or I think you might be disappointed... There will be positives to making the switch but there will also be negatives, so be prepared for that. I would say the vertical size of the intermediate probably will be ok - it's the horizontal width you might have an issue with. I wish you the best of luck with it!
@@thespectaclefactory Thank You. I will only choose a higher end product even though it will cost more. Vision is too important to accept less. I will aim for a good free-form model that will allow maximum horizontal width. If nothing works out I will simply return to lined trifocals for as long as they last or I may ask the optometrist if it is possible to alter my reading lens so it takes in some of the intermediate and just return to lined bifocals which still seem safe from eradication. I have heard that is some kind of new varifocal called Natural Addition Lens is on the horizon that is thought to be an improvement over currently existing varifocals. I will be interested in seeing how that works and if it catches on. Thank you again.
Hi . I have a somewhat lazy right eye and I have some sort of condition where I'm only ever looking out of one or the other eye, like an automatic switchover, and very rarely both eyes. I have been asked if I would like varifocals a few times now (I'm 48 and now a yearly prescription. I need the green tint too. are varifocals going to make things dizzying to get used to please?
great vid, I live in Hastings[south coast] have you a branch anywhere near me? every optician I have been too has never really helped in anyway, you just try pick a frame[no measurements taken] no advice given,...
Hi James, firstly; Thanks! Maybe in future but sadly not right not. However, we have plenty of clients like yourself travelling from the south via this service: www.thespectaclefactory.com/visiting-from-afar/
I was in Specsavers today. Doctor told me I need Veri lenses and rest of the staff will explain me how they work. They showed me a screen with a 4 options Standard, Premium, Elite, Tailor ( said names and the price only and two words about corridor...small ,bigger...). I chose Elite type first but finally price was too high for me ( two year ago for single vision and expensive frames I payed half of this price). I changed for Premium. Now I'm thinking about it. Maybe I should stay with Elite or even Tailor. I'm worrying about driving . I'll be collecting my new glasses and next two weeks .
@@thespectaclefactory Hi. I read and watched informations about this and called to Specsavers and changed my order for single vision like always had and I'm happy.
They definitely have their advantages and disadvantages when it comes to driving, but most people who wear varifocals do use them to drive. We can always make you a set of DriveSafe, btw. We ship all over the world.
I've been researching the Zeiss lenses, over the years there's many advancements. Which lens would you recommended for driving, driving at night and daily use? I'll be needing a bifocals. Thank you for your time and the informational videos.
Drivesafe lenses with PhotoFusion for night time driving + general use. My Magma Orange lens for daytime driving: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-whP9vu65eG0.html
I appreciate the information. I visited my eye Doctor today and their office doesn't sell Zeiss lenses 😢 not sure why, if that was a decision from an owner or if the Zeiss sales rep wasn't able to seal a deal. What we're changing my lenses to should be an update. Thank you again.
I got an eye test with only OD and OS for SPHERE, CYLINDER, AXIS, and ADD. Additional information Active Yes, and Binocular PD Dist 66.0. Is that enough to select the right varifocals for me? Thanks
I have been told I need varifocals (age 41) I dont do change well at all and I am really struggling with the idea. Having them made at present but am so nervous for getting them. Feel like a drama queen feeling this worried but I am really not looking forward to it,
Hey Sally, did you see my video about digital lenses? ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-nR3dQKL38D0.html& Those are much easier to get used to and an ideal stepping stone to varifocals
I’ve been wearing varifocals for many years now just got new ones and I’m really struggling with them been back to my optician a number of times and had new prescription done in a different frame to one I originally picked and I’m still having issues especially with reading. Help what else can I do ???
I have had retinal detachments, followed by cataract surgery in both eyes (5 years apart). I am left with mild astigmatism in both eyes and a short distance lens in one eye and a long in the other. The hope was that my eyes would adapt to “monocular” vision but appear to be stubbornly binocular. I can see at both long and short distances, but there is distortion, esp close up. Such is the dominance of my right (right, long distance) eye my consultant has recommended that to see at all distances I either purchase multiple lenses or “executive trifocals” as I would find the distortion of Varifocals too much. Looking at your video, I wondered if some of the newer varifocals might work as I don’t much fancy switching from lens to lens to do different things or wearing trifocals. Do you have any general advice?
Yeah, I've definitely fitted varifocal lenses for patients with prescriptions like yours before. They may need to be iseikonic lenses to prevent amisometropia. Worth coming to visit us if you can
I still don't understand WHY there's so much blurry real estate on the lense. If I wanted a bigger reading area, doe that mean a smaller distance area?. and WHY? 1/3 of each distance prescription should just make sense, no?
They can be customised to give the wearer more or less of each zone depending on the client's lifestyle. As for the blury zones, it's just the laws of physics I'm afraid. Some of the world's leading physicists are working on this problem, but an optical surface with multiple focuses necessarily will induce distortion.
Hello,good video. If i cover one eye (not close it) when i am reading, should the uncovered eye stay focused on the word as i find that mine isn't but is if i turn my head slightly, which leads me to think that the prescription is in the wrong position, off set a little.,and vice versa. The optician assistant says that's ok as the eyes work together and not individually which seems a cop out to me. Surely they should both be in focus on an individual basis which is the whole point isn't it. Hope this makes sense.
As long as the focus is OK with both eyes open, then that is the main thing. Many people have a dominant eye which takes over during concentrated activites, and the other eye is not as clear when compared. However, if you are very one eye dominant, the varifocal lenses can be optimised on the 'inset' so that the reading zone is in the right place horizontally.
@@thespectaclefactory Thank you for your response. I'm now considering going back to to the basic varifocal lens because of the price saving and because of my disappointment with the more expensive ones ( having seen no great leap in viewing area ) and getting a single vision pair just for reading, which i do a lot of. Is this advisable. Thanks again
@@stevewalton456 Yes, that's a good option for a lot of people. But I also wouldn't be put off the best varifocals unless you actually did try the best (not just the best that are sold by Specsavers etc)
Hi, it depends on the quality of lenses you invest in. For example, Zeiss SmartLife lenses have a larger viewing area for the smartphone, so you would be able to see a bigger screen. More basic lenses would probably work best with a small screen as you wouldn't notice the distortion so much.
So, my right eye has always been a problem to get the prescription clear/sharp. BUT if i use a hand magnifying glass held about half way between the glasses and the book i'm reading (with the left eye covered ) it can be made to be crystal clear. Why therefore can't they make the lens do the same in the first place. Its obvious that it can be done so why doesn't the eye test come up with this when it's done.
Probably because doing so would result in the focal length being the distance between the magnifying glass and the page, which might make them very restricting. But I'd love for you to visit the store and we can use our tech to give you the best possible vision
@@thespectaclefactory Yes, that does make sense and would make them very specific to an exact distance. Oh well. I'm currently trying to rid myself of 'dry eye' which is making my vision blurry and erratic, one minute good and the next not so good. Yes, I would like to visit some time and get a proper service. Thanks for your responses and advice and hopefully see you soon.
I'm a wheelchair user and I tilt back in my sitting position. What do you recommend to correct my viewing through my varifocals because of my lenses are not where they should be.
The height of your lenses needs to be lowered to compensate, and the position of the reading area needs to be raised to compensate for that. Would be glad to help if you'd like
@The Spectacle Factory went back to optician's again today as I didn't like the bigger frames I'd chosen as the glasses didn't sit correctly pr comfortably on my face. I took an old pair with me, which was fairly clear to look out of in case the new lenses being inserted into my old frames were not clear. Thankfully all OK so far. If there had been an issue, I was going to show them the advice you gave me. I just wanted to thank you for your advice on the advice the other day. I appreciated it
@@TheSpokesman69 There are lots of factors which could cause ghosting. Usually it can be fixed but it depends on the cause - sometimes it isn't possible to eliminate
Thank you for your response. I'm now considering going back to to the basic varifocal lens because of the price saving and because of my disappointment with the more expensive ones ( having seen no great leap in viewing area ) and getting a single vision pair just for reading, which i do a lot of. Is this advisable. Thanks again
Well, i had a good chat with the optometrist and iv;e decided to go for bifocals. I'll post the result when i get them, thanks again. @@thespectaclefactory
Well finally have the bi focals. Excellent for distance and excellent for reading. Just getting used to the divide line and instant transition from one to the other. Not too bad so far though and confident I will.
You promised you'll answer all the questions below lol , so can you help me please. Got two pairs of glasses today, distance and reading. (for some reason the Optometrist was saying watching tv when mentioning the distance ones during the eye exam even though my eyesight is not the best . Anyway, let's say I'm wearing the distance ones and everything is fine and clear (although sometimes a little hazy) and I turn my head to look at the coffee machine which is close to me. Well, then the Coffee machine will be Blurry so I gotta try focus again. Any idea what's going on? Does that stop after awhile? When I take off my glasses now I feel like my eyesight is 100 times worse than it was just yesterday also. Sorry to be asking you all this. Just no idea what to think.
They have to exist because there is a change in focus within a single optical lens, according to the Minkwitz equation (the rate of change in one direction is proportional to the rate of change perpendicular). It is the laws of physics I'm afraid. The manufacturing process is a bit too complex to explain in a RU-vid comment.
Can you have an axis of 90 in one eye and 10 in the other? And can an axis change from 180 down to 10 within 2 years? I asked 2 of my local opticians about it and was told both times that there is no real difference between an axis of 180 or 10... Seems very strange to me. What are your thoughts?
Have them for years. However recent change in prescription new lenses was weird. Got Them local in a opticien store in EU Netherlands. With my new prescription my old once are useless. The digital free form are expensive in thin size. Orderd in China with new prescription even sport wrapped frame and normal and polorized sun glasses. Way better good service and good prices. The highend lenses cost a fortune here. So verry happy online experiance. Good explantion video. As user got to know this and only want quality lenses wide field. With the right parts in the right spots of the lenses. Got digital eye test in nl. Yes sphere, antistigma, cylinders, add. Professional driver for job. Planning reading a lot office work. Need the best i can get. What I want is € 1000 and up in my country. Lot of money for average people. And want at least 3 OR 4 pairs photogromatic quality ar coatings etc.... Get them here(local) is the price of a used nice car grazy in my view! Understand need to make profit, but here its comes way to far in therms of sale prices.
Yes, I can understand. I'm glad you are happy with your online purchase, although I think you got lucky. There are lots of important measurements which can't be taken that way. We always try to have different brand options to fit with anyone's budget :) Thanks for your comment and keep watching!
Hi, Do you have any store in London or do you know a good place like yours to buy varifocal, measured with the digital system you mentioned? Thank you.
Just got new zeiss progressive smartlife 3 lenses. They are very clear. However when I look at at bright light from e.g. a street lamp or white subtitles on my TV the light is extremely strong and has some blur, like the text has some shadow. It is a bit double. The rest of the picture is extremely sharp. It's exhausting. It fixed it to make the subtitles gray but what do I do in the summer? My smartphones background Is white and that poses no problem. I will ask my optometrist I guess.
Hi Rob. I'm really hoping to get your feedback. I recently pulled the trigger on Varifocals, unfortunately, I was not informed of Standard Varifocals vs. Premium Varifocals (Digital). I'm a little concerned now that since they've ordered the Standard varifocals, I might have a very challenging time with adapting due to the distortion areas. But then I watched your video, and you indicated that with advances in technology, the distortion area is much less. Also, my reading prescription is not very strong, it's only Add +1.00 Should I be worried about a large distortion area, even with Standard varifocals? Any help would be greatly appreciated.
Amazingly informative video, thank you! I wanted to ask about varifocal lenses - when optician measure the middle distance - is that going to affect the lenses? I mean an optician i went to, made me a pair that I cant at all use for computer (and that was no 1 desire), said that the lenses only made to the distance and the reading subscription and the technology will sort out the middle measurement. Sounded not right! as I don't then understand why they would measure the middle distance at eye test?? would be a waste of time. but I haven't been able to find information yet about how they make the lenses from the eye test..... what is the truth? massive thanks
Hi Beatrix, your optician is right that when manufacturing varifocals, only the far distance and close up prescription is specified. The reason is that technically you have a different prescription for every single distance between those two parameters. And in the varifocal lens it has a different focus to correct each of those prescriptions at every point as you go up and down the lens. This is also why varifocals aren't great for using for long periods at a specific intermediate (mid range) distance. However, some are better than others! The SmartLife lenses I mentioned in this video are probably the best for computer use. The reason they measure the middle distance during the eye test is in case you want a pair of glasses purely for that - which is what I would recommend if you are doing a lot of computer work (I did mention this in the video).
@@thespectaclefactory many many thanks. I have lenses I cat even sit down and really enjoy half an hour at my laptop, I do found that one is a bit not OK. Fair enough if I need a pair of proper office lens for marathon use, but short or semi short time I imagined that normal varifocal wold work. Will try again. Im a bit disappointed as trying to sort this out for about a year now.....but anyway, thank you for your super quick reply.
@@thespectaclefactory no idea the short answer - beyond they said that's the best (and showed me that classic diagram of the blind spots). I didn't know then that there was more to it, then when I collected the pair I became very disappointed. I went to this independent optician already for a second advise and already been through a few tricks with another one (height adjustments). Only when I raised concerns again they said they could adjust reading area 'heights' and change the lense to an even more expensive one that can flatten the lens and make it more 'real' to view through - also my eyes wont look so big in them. But no more info of make or other choices...... That's when I started reading about varifocals and found your videos.
ps: i have office lenses, the old pair, but still OK to use and better than my new varifocal. My previous varifocal was a dream to use, but I broke it in Covid time and my eye sight deteriorated since. So I do know you can have varifocal that are very comfortable, I experienced it...Anyway, THANK YOU SO MUCH for reading my questions/story.
Im fed up with not getting the approximate cost of varifocals. Is this so you have to barter for them or that they can add on this or that to raise the cost. If so stuff your glasses i will buy cheap ready made glass for a hundred baht or so. bugger opticians.
I've just picked up my pair of varifocals today, and, although I 'need to get used to them', I don't understand the incredibly small sweet spots. Only the bottom few mils of the lens is good for reading. I have to tilt my head right back for computer monitors or adjust to incorrect DSE position, and again, it's a really small sweet spot to the point of being stupid. Far distance is the same as near, in that literally it's only just below the frame that is fully focused. Is this normal? Surely there should be better use of the lens space at the top and bottom. A few millimetres of full focus seems like a rip off. I bought the most expensive ones too.
Where did you get them from? Did you have digital centration, or manual with a pen? And do you know what type or brand the lenses were? It makes a huge difference...
@@thespectaclefactory Hi. Thank you for responding. I went to Specsavers and bought their most expensive, widest field of vision varifocals which I believe were called 'Taylormade' (I could be wrong on that though). I realised yesterday that it seems that the correctional assistance at close, medium and distance between the two lenses aren't parallel. E.g. the correct focus for reading with the right lense is a few mils higher in the frame than the left lense. I was measured up manually by hand.
Yeh I've emailed and asked him to cancel them and just give me 2 pairs of normal ones. I have enough problems with balance and low muse tone tripping and fallinf without having distorted vision. Glad I watched this really. Thanks
I just returned my progressive lenses. They were horrible. The viewing fields for the middle and bottom were incredibly short and very narrow...not at all as wide as this woman is showing on screen. I had to constantly move my head to read a sentence and keep all the words sharp and clear. Pain in the a**. I went back to my line bifocals.
Firstly... I'm not a woman?? But in this video we explained how there are many different progressive lenses. Which ones did you try? I imagine THAT is the problem. Don't tar them all with the same brush
you should give youself some time, I experience this innitially but after some time I feel comfortable at time I forgot that I am wearing glasses, usually there are three tier and the different is the wide area of the middle part, the wider usually are more expensive , I get to purchased the middle tier which cost appx usd1K including frame, from my personal experience the Optician play a very important role too, ps. in my country Eye Doctor and optician can do the eyes test, I understand in some country only Eye Doctor can give a precription, Cheers