I do prefer to make my own refractive STATE Measurements. Far more accurate, since I can check objectively, on a weekly basis. Accurate to 0.25 Diopters.
I find that my lag is worse in my SV contacts, myopia control MFCLs and glasses. My lag is the lowest with the testing flippers. Could it be due to the high +ve spherical aberration properties of the flipper lens creating a higher accommodative stimulus? I am of East Asian decent and very insensitive to blur. My habitual wear is lackluster during schoolwork but my optometrist keeps telling my mom my eyes are fine
Thanks a lot Kate for these wonderful skill learned, is very commendable. I am soon to start using a phoropter for my refraction 😅 so I need more complete refraction including spherical astigmatism power
Thank you. I am a Korean with exophoria. I think it's a useful practice method. The astigmatism is -3.50 diopter. I heard that lack of control due to astigmatism leads to lack of convergence, so I'm doing control training. This is because we expect it to help with convergence, so do you have an opinion on this?
안녕하세요, 여기서 한국인 댓글을 보니 반갑네요. 저도 외사위 폭주 관련 훈련을 1년반이상 하기도 했고 현재는 조절용이성 관련 시기능훈련을 필요로 하는 상황인데 이 댓글에 답장 좀 구할수 있을까요 ? blog.naver.com/sundayrain2/223181889293 해당 블로그가 제 대략적인 상태입니다. 유사한 어려움을 겪는 분들을 찾기가 워낙 어려워서요 ㅎㅎ
Hello lam so intrested for this course but actually myopic control spectacle lenses are not available in my country so I would like to know these lenses link or even companies contact
@@UbuntuOphthalm we're in Australia and got them from a local company (Cyclopean Designs) but we've seen them online for sale via eBay and AliExpress - search 'optical flipper'.
Can therapy work without prism for VH and BVD? Asking as patient… also, how do you determine if eye strain and weakness in one eye is BVD related vs something like MG?
Hi, Great tutorial - I am in need of glasses, but I can't find a doctor that has a variable measuring practice (i.e. Binocular focus system) that one can adjust to the desired distance than the doctor would measure its value. Multi-lens measuring systems confuse my brain and one fears selecting one of the last two choices and ending up with glasses that degrade one's vision rather than help it - why on earth technology has not reached this, and we still using 100 years old system.... I can't understand it for the life in me.
Hi Abe, us eye doctors do need to measure your prescription for far and for close, at set distances. This provides standardised information for past and future comparison. We then use this information, along with knowledge about your visual environment and activities, to determine the best prescription and best type of spectacle lenses for you. If you're struggling to make the 'forced choice' options of what we call subjective refraction ('subjective' as we're asking for your feedback), ask if your eye doctor can make an objective measure of your refraction instead. There are a couple of techniques (retinoscopy and autorefraction) which are objective, taking the guesswork away. We use these techniques as a starting place and it might be the finishing place for those who can't tell us otherwise, but for most adults we will also want to ask your opinion about what looks clearer to you.
Sorry for this silly question, I've found the model of multifocals I use get dry in the eye and the only way of rehydrate them is getting them out of the eye and use the same solution I use at night. Artificial tears don't work, I have to take them out of my eyes. The model I use is B&L Soflens. I'd appreciate your opinion on this. Thank you!
You do know myopia is preventable with the use of plus for near for low myopes right? Plus lenses have the same effect as atropine. Well shown by science, want me to post it here?
Myopia is reversible with the use of plus lenses for near / lowered minus for near for higher myopes. This is pure science - those who wish to ignore it >> keep wearing your full minus and get your eyes messed up :)
Not necessarily. A high lag means that the person is working harder at near with their distance prescription. Reducing the distance prescription will cause blurred vision, if the prescription has been measured accurately. So, usually a high lag necessitates spectacles which provide a reading add such as progressive addition lenses.
@@MyopiaProfile when I do the monocular part I get -0.75 in right and -1.50 in the left and then -0.75 in right, -1.00 in left after prism dissociation test. Why is that?
Tragic, now, to understand what happened to captain Tom, eyes, after he started wearing a strong minus lens you prescribed for him. Yes, his exial length, is long from that minus lens. Now he is blind in space
Hi Kate. I had a 9 year old young boy today who came for an eye test, he had a small alternating xot at near and large XOP with rapid recovery in the distance. His unaided visions were 6/6 each eye. Retinoscopy showed +0.50DS. His father told me that he had recently had strabismus surgery to correct the xot last year, and after the surgery, they had prescribed him -2.50DS apparently to control the strabismus. I checked the prescription from the hospital and they had indeed given him -2.50 lenses, but he has stopped wearing them since last year, and his father wnTed to know if he should continue wearing them. I placed a -2.50 into the trial frame and redid the cover test, the lenses were hardly making any difference. Should this child continue wearing -2.50? I don’t see the point considering his visions are 6/6, he’s past the age where amblyopia could develop, and the lensss aren’t really doing anything to control the near strab
Hi Thomas, if the lenses don't seem to help with his cover test then they may not be needed any longer. An overminus of -2.50DS is a common management for intermittent XOT - here's a paper: pubmed.ncbi.nlm.nih.gov/33662112/ I would want to test and retest the cover test and fusional reserves several times during the exam to check for fatigue. If he fatigues a lot, perhaps he still needs some support at distance. I'd be concerned about a 9 year old child reading through an extra -2.50 at near, though. If it's not needed for fusion it could place excessive demand on accommodation at near. Kind regards, Kate.
@@MyopiaProfile hi Kate. Thank you so much for your advice. I am intending to purchase your binocular vision course online, I wanted to ask whether the course, or anything else, would allow us to communicate directly with you for support on complex cases..? I am particularly interested In becoming more confident on prescribing guidelines for children, I am in the UK and we usually use Susan Leats 2011 paper as a basis, but I find it confusing tbh.
@@thomasbuxton2648 of course, you can email support@myopiaprofile.com or message me directly through Facebook or LinkedIn. You will find Susan Leat's 2011 paper translated into prescribing tables in our course Mastering Refraction for Kids!
@@MyopiaProfile many thanks! I’ve purchased your BV course, very excited to start it! Regarding your mastering refraction course, one of the things that I find particularly difficult re Susan leats paper is that there are no examples.. (of Course there wouldn’t, it’s a research paper :-)) does your course walk you through examples of how to prescribe for hyperopia, myopia, astigmatism, anisometropia, etc according to age norms as outlined in her paper? :/)
Thank you Kate, Of course it is equally accurate to measure SPHERICAL. There is no legal requirement that cylinder be measured. I just use my own Test Lens Set. A personal choice. I prefer Spherical Equivalent. I confirm my Snellen at 20/20.
Hi Jackie, we have How-To video guides on our MyKidsVision.org website which include applying and removing contact lenses, both for the individual and for a parent applying and removing them. Check out this link: www.mykidsvision.org/VideoGuides
It appears to be a risk for adults as well, but we don't have a lot of data on it. Here's a summary with links to scientific papers: www.myopiaprofile.com/measuring-near-lag-of-accommodation/
My answer - use your retinoscope to check the cyl axis beforehand, if you don't have one available from retinoscopy, autorefraction or a prior pair of glasses. If the astigmatism is very high, I would start with checking axis first, not cyl power. Hence, this comment from D eyesc is helpful. This video mentions, at the start, that the technique to 'search for cyl' is to help with small astigmatic powers. I always do retinoscopy first - if I decide to check my result with subjective refraction, I'll already be close to the cyl axis.
