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"Floaters" are not caused by LASIK, PRK, or for that matter, IOL surgery for cataracts. Nevertheless, this can be a common complaint from patients. Why is that?Two reasons: 1) Patients can see better now, after vision-correcting surgery, things that were already there but not...

With today's ICL technology, there is really hardly any situation where doing both procedures would be needed. ICLs nowadays can correct astigmatism and very highly nearsighted prescriptions. But this didn't use to be the case. There was a time when I would have to...

Keratoconus (or even signs suggestive of keratoconus) are a contradication to having LASIK. Keratoconus patients are often highly myopic (nearsighted) and usually have significant astigmatism. So it is easy to understand why such people are very motivated to have some sort...

Presbyopia only affects vision at near and intermediate distances in an otherwise normal eye. This may not be the case, though, if there is any latent hyperopia (a different and much less common type of farsightedness than presbyopia), cataract formation, or other possible...

Only negligibly -or not at all.The minification and greater distance away that an object appears when looking through a strong concave spectacle lens is a function of how far away from the eye you hold it.Technically, it is a matter of how far away from the "nodal point" of...

It depends on how strictly you would define "natural (human) lens function."Remember, though, that the multifocal IOL is only one of several different kinds of presbyopia-correcting IOLs. Many people mistakenly assume "presbyopia-correcting = multifocal!"If you asking...

I like this question and hear some version of it almost every day! It shows how important words are in understanding something that is really not so complicated. A "cataract" IS a lens, just an aged and dysfunctional one. So there is rarely a need to remove it and not replace...

"Floaters" are the slightly out-of-focus silhouettes of condensations suspended in the "vitreous body" of the eye. They tend to "slosh" around as you move your direction of gaze, but usually quickly return to about the same relative position in your field of vision.The...