7:07 "Having a near add of +1.50 means that the glasses are designed to be used at a working distance of about 67 cm, which is perfect for computer work." Watching this, I immediately wondered about how far I was naturally sitting from my screen, so I paused and grabbed the tape measure next to me. It was 67 cm, bang-on. This guy knows his stuff. 😂
1) Myopia 2) with the rule astigmatism 3) using glasses for distante tasks. Hi, Antônio Im regular optometrist in Brazil, and I love your content , congrats for your amazing job. Unfortunately the optometry in Brazil isn’t so recognized as your country , so we have a big fight against the ophthalmologists, because they wanna do all the health care but I really hope someday we could have a peaceful and healthy relationship with the ophthalmologists But even with this big fight, we can made a better health care for the Brazilian people. Greetings from Brazil.
Thanks for sharing this, a most insightful video on the meaning of the prescription - in the UK and least, I've never seen the PD or BVD written down - it seems to be a cynical attempt by the various opticians to avoid you taking it away and buying glasses from a third party!
Luckily you can still get glasses from a 3rd party without it! They'll just measure for the PD and BVD at your fitting appointment. I like to get my eye test done at a private opticians as I find they give a better service and it's quieter there, then take my prescription down to Specsavers to get glasses as they're much cheaper than the private opticians
@@Arvak Yes indeed that's one way to do it - it's the online only dispensers that need the info remotely such as Glasses Direct - fortunately if you have a spare pair they can derive the numbers they need from them but it all takes longer as a result - now that I'm wise to this I'll ask the tester/admin to note those values too!
I've got hyperopia in the left eye, astigmatism in both, left oblique +1.00, right with the rule +1.25, but otherwise 20/20 vision. Thanks for the help figuring out my rx! I always wondered what all the numbers meant!
You rockstar, you! My prescription isnt even in English, but it didnt matter, for the first time I understood what it said. And I got my first pair in the 90s. Dude, you made me so happy!
My friends sometimes ask what my glasses prescription is and I usually respond "I don't know" because they're expecting a simple '-0.75' -type response, when my actual response has 4 completely unique numbers due to having different levels of myopia and astigmatism in both eyes
oof yeah i got a similar deal, some myopia, different astigmatisms, tinsy bit of hypertropia. I usually just say "my right is worse than my left, can still see without glasses, but will get tired when reading without them"
1. Myopia 2. Against the rule astigmatism 3. They will be using it for distance tasks These are my answers to the questions. I enjoyed the video. Keep the good work up.
he didn't really explain it, but someone in the comments actually wrote degrees on the x number. looked it up and sure enough it was that number. With-the-rule: 0 - 30 or 150 - 180 degrees; Against-the-rule: 60 - 120 degrees; Oblique: 120 - 150 and 30 - 60
I always wondered how the distance from your glasses to your eye was accounted for. When I get my new glasses (after recent cataract surgery) I’ll be sure to sit in the correct position in the chair with my chin on the chin rest.
Hii sir i am from India 🇮🇳 first time visited on your channel and found best knowledgeable video, i have requeste to you could you please make videos on subjective Refrection, when to give SPH lenses and when cylindrical it would be highly appreciated sir ✨✨
Can you make a video talking about higher order abberations vs lower order abberations. I can't tell if I have them or which glasses brands work best with higher order abberations
Hey Antonio, thanks for the video. I have recently been to two different opticians. One stating my myopia has advanced to -2 on the right eye and -2.5 on the left, and the other stating it is -2.25 on the right eye and -2.75 in the left. Even though it is not a significant difference, I am not sure which prescription I should use now. Any advice?
I'll make a late reply in case someone else in the future is in doubt: Increases on glasses go by 0.25, so it's normal that you got 2 tests so close like that. I would personally go with the one with -2.25 and -2.75, cause it will probably last longer before the eyes get even more than that level. Let's say your current level on the left is -2.09, maybe in a year that will become -2.15, and in 5 years it's -2.40. It depends on your luck about how fast it degrades, and how often you will change glasses.
I would love to learn how those machines work, cuz they give me some results regarding my astigmatism, but my oculist lists another ones (different axis)
That script looks a lil like mine, so - short sighted (can't see without glasses though, it'd be all blurry), they definitely have an astigmatism (but idk which one - the across one) and I would assume it's for long distance. I'd love a video on the "flashing balloon" machine, those are interesting.
Could you please discuss what kind of glasses someone with myopia in order to do target shooting? I can’t focus on the rear sight, front sight and target with a single pair of eyeglasses. I have had cataract surgery and my lens implants allow me to focus at about 16 inches. I find myself lining up a shot through the upper left corner of the lens.
Cataract surgery takes away your ability to adjust focus unfortunately, I’m afraid there won’t be any perfect solutions here, possibly multi focal contact lenses? 🤷🏼
1 is myopia, 2 is with the rule astigmatism and 3 is distance use. My UK prescription also has a figure called Axis, 80 and 87, what would that be? Thanks for the explanation, l learned a lot!
Am I able to tell what my prescriptions are just by looking at the glasses? I recently went to a spectacle shop to get a blue lens thinking it would help with my red eyes from using computer(i think) The optometrist didnt give me a prescription paper but gave me a receipt instead. The shop was abit too far from my house and I was busy with work so I didnt went to get my prescription. She did told me i have slight asmatigsm and my degrees were about hundred plus. My red eyes has no other symptoms. No pain no dry no itchy. I would not even know till someone told me and it always happen on the left eye. Lately I have been having dull pain/headache behind the eye. Is it a concern?
Can you tell me what the target distance is without the Add? I currently need 3 pairs, one for iPhone/Book, one for 27" Computer screen a metre away, and one for 4K TV on the other side of the room - beyond 7-8 metres I don't need any glasses. So if my prescription says +0.75 with Near - Add 2, what's the formula to calculate the add for any distance?
I have prisms, because without them my eye muscles get tired too fast. Could opt for a surgery, too, which would make my glasses cheaper, but so far getting new glasses every 5 years is OK for me, so it's very affordable.
I’m sorry, but I don’t see how you can tell which of the three types of astigmatism a person has from these samples. I must be missing something. Can someone explain it to me?
It’s the number that the sphere and cyl are being multiplied by (the x180 or x13). The number corresponds to the angle (near 180 or 0 is with the rule, 90 or 270 is against the rule, and so on) I’m not an optometrist, so I may be wrong, so feel free to correct me!
Can Distance Vision portion of prescription has +2.0 for Sphere ?I thought it would always be negative number , is that right ? Question -IF THE SPHERE IS +1.5 AND THE ADD COLUMN IS +2.0. DOES MY SPHERE THEN BECOME +3.5=+1.5+2.0 like combination of two values . i want to buy just over the counter Reading Glass but not sure how to read eye prescription .Could you help. so like in the above example , am i suppose to get reading glass of +3.5 or just +2.0 ? Thanks
hii anto you work very well and helpful for me.. but today i have que for you bcz i think none other than give me the correct answer of my que. so my que is it safe to reduce the eye number with laser surgery even if it's not constant it's changed/increase now a day? or can you please tell me any other surgery for this which gives best results for reducing no of eye if laser surgery is not the good/safe option? and other que is any chance of increasing number of eye after the surgery? please help me i m waiting your answer.... love from india ❤️❤️❤️❤️❤️❤️❤️❤️
Can you please answer my question If someone asks me what is my eye prescription in general do i tell them the SPH one or CYL one considering i have both of them?
I know I have astigmatism in my left eye but the Add values are blank for both eyes - and instead they have "Axis" values - which I notice you didn't include. Is Axis derivable from Add or vice-versa?
Axis value defines the type of astigmatism. 'Add' value nothing to do with axis, 'Add' value is added to the 'sphere' value for reading glass prescription.
I didn't see any explanation of types of astigmatism. Did I miss something? There was a mention that one was "with the rule" and another "against the rule", but the rule and the angles were not explained.
@@AntonioTheOptom thanks for the explanation. So if you have astigmatism so the front of your eyeball is shaped like the back of a teaspoon, then the angle listed is where the handle points to, yes? I imagine it's numbered like a compass or clock face. Is the 12 o'clock position 0 degrees? And then counting around outward (to 3 or 9) then down to 6 o'clock?
Mine prescription was 4 months ago: OD: Sph -1.00 Cyl -2.50 ax 117° OS: Sph -6.50 Cyl -8.00 ax 88° I have Oblique astigmatism in right eye and against the rule astigmatism in left one Edit:now my prescription is: OD: Sph +0.00 Cyl -3.00 ax 117° OS: Idk only i know is my vision acuity increased from 20/225 to 20/400
i hate those automated machines - i can never see the balloon (more than -14 in both eyes, lucky i don't have cyl or prism!), and they never get it right. Discovered my left eye, though more negative than my right, wants to be dominant and the most comfortable script comes when the right is slightly undercorrected and the left slightly over. (wtf??) i was wondering, you never addressed it: what was the "x 117" (or whatever number) after the sph/cyl numbers? Thanks for sharing this!
I have 2 pairs of glasses. One for driving and one for reading. They're both okay. If I wanted to get a cheaper dollar store pair what are the numbers I would use?
Add the Sph and the Add together algebraic. this is your dollar store reading r/x for reading. Example. -3.00 Sph with an add of +0.50 you reading rx would be -2.50. however, this will not correct astigmatism. another example +1.50 Sph with an add of +2.50. your dollar store would be +4.00
My prescription says for Right eye the sphere is +2.75 and Left eye is +2.25. There's no add but Right eye has cylinder of +1.00 and Axis of 095. The Left eye has cylinder of +0.75 and Axis of 090. With these measurements how would I find out what strength of Dollar store glasses I need?
My mistake! The measurements I sent are for distance! The glasses for up close measurements are Sphere:. Right eye +5.00 and Left eye +4.50. With Cylinder of Right eye +1.00 and Left eye +0.75. Axis of Right eye 095 and Left eye 090. These are the correct measurements! With THESE MEASUREMENTS what strength should I get at the dollar store?
I am looking at my prescription while watching your video, but I am still confused. I have been wearing glasses for 30 years, bifocals for the past 5, and my prescription has a category that you didn't mention, what does the AXIS mean? Right: Left: SPH: -6.75 SPH: -7.75 CYL: -2.00 CYL: -1.75 AXIS: 174 AXIS: 005 ADD: +1.75
As a glasses wearer (of more years than I care to remember) with a minus prescription, I always find this when I get new glasses. I aways assumed it was because the object is no longer with a blur around the outside, that is looks smaller and the brain interprets them as closer.
Oh why, oh why, oh why could you have been my optometrist? My left eye has a value of -8.5. My right eye had emergency retina surgery to connect it back to my cornea and then cataract surgery to replace my lens. It has a value of about -3.5. I last went to a National Lens Company for glasses. I don't think I got the Doctor that was head of his class in school. I have progressive lenses that work ok for distance. In fact, I can tell the color of a traffic light a mile away with my left eye. My right eye is a bit more dodgy because there are certain spots that are fuzzy no matter what distance. With my glasses I have double vision at short distance of 20 feet or less. I just close my right eye. At Close up my right eye had spots that go fuzzy. Now my left eye without my glasses, I can read and see every line and micro printing on a $100 dollar bill. It made it great for checking for counterfeit currency. Although my focal length was about 5 inches I could see everything on that $100 bill. I couldn't see the dashboard of a car without my glasses.
I am -6.00 in my right eye and -10.00 in my left, although it's not great because I can't read anything out of my left eye at any distance (it's always too blurry). They haven't updated my prescription since 2020, and they say they can't fix it for me, so I'm going to a specialist in March
If you go to ophthalmologist they always right their script in a + sign. To get your true power, you need to add sphere and your cylinder. And transpose the axis. It's hard to explain here coz it will be too much to write it down.
Medical insurance cost the doctor $1200 per month in the USA. therefore you pay for his insurance in the product. Simple explanation. Socialized medicine in other countries.
I keep trying to tell them I've memorized the letters they show me and they need to rotate the letters or something. Otherwise, I'm not really giving you accurate feedback on what I can and can't read. 1) Myopia 2) With the Rule astigmatism 3) Distance tasks
