A case presentation to illustrate the question of why to use the 6mm corneal zone for evaluating HOAs.
Пікірлер: 14
@LASIKsecondopinion Жыл бұрын
Every single person considering refractive surgery should watch this. The current standard of care that ignores pupil size is criminal, not that even people with small pupils should get these surgeries when you consider the much worse complications like corneal neuropathic pain.
@jaden6781 Жыл бұрын
Yep. I wish I didn't get my LASIK. endless night vision issues 10 months later and I'm back in glasses
@K007117 ай бұрын
@jaden6781 i got smile surgery before 10 months, got high order aberrations, quality of vision is poor, spectacle improved vision, but doctors advising another surgery to correct aberrations, i don't know what to do
@LASIKsecondopinion6 ай бұрын
@@K00711 whatever you do don't get another refractive surgery. Secondary surgeries are riskier, less predictable, and not FDA approved. Optometrists who have seen these cases know additional refractive surgery won't fix the original problem, and often introduces new complications.
@anciyanazar7651Ай бұрын
@@K00711hi i did relex smile 1 month back .. i strted having distorted and blurred vision during morning and double vision of text on screen and dark background.. my doctor said i have developed a HOA coma and it usually resolves within 3 months .. hw did it go for you .. pls reply
@subhabratabhattacharya54922 ай бұрын
The light bends as it passes through the anterior cornea considerably (refraction). Therefore the marginal rays passing through a, say 5/6 mm pupil will bend and may pass through a 3 to 4 mm pupil. The light does not pass through a straight line as it passes through cornea. Therefore a 1:1 relationship between cornea and pupil is not ideal. Just because the pts pupil is 3 mm in mesopic condition, does not mean that only rays pass through the 3 mm of cornea will only be relevant.
@user-lk3kq7gv6d Жыл бұрын
wow doctor thank you for this informative video!
@eriksxo Жыл бұрын
Lasik destroyed her eyes
@OperationDecoded2 ай бұрын
And then there are patients who have 9 mm pupils under regular daylight and had refractive surgery and surgeons told them it would be fine. What's your advice there doc?
@alweek5 ай бұрын
One other reason for using 6mm could also be, that iol optics are typically 6mm diameter. So optics engineers that design those lenses "think" in terms of 6mm. And this way of thinking percolates down through the process, to the sales material, to the lens rep, to the doctor My 2cents
@1953childstar Жыл бұрын
Very informative !!!!
@Berfo16 ай бұрын
I wonder is this now common knowledge in ophthalmology to look at pupil size/night pupil size?
@ahmedyoussef64973 ай бұрын
The reason is.. that all Zernicke polynomials are based on 6mm zone.