One's vision and one's glasses prescription have only a loose correlation. Of course, the higher the Rx number means in general the worse the distance vision. But there isn't any sort of "-3.00 Diopters = 20/400" and "-4.00 D. = 20/800" visual acuity relationship. Once...
Continue ReadingIt may be difficult to imagine, but what we see "out there" is not a passive input of data onto some sort of neural screen in our brain. Rather, what we see is our "projection" onto the world out there of a model we have learned for interpreting that visual...
Continue ReadingProbably not. There are really two issues here: 1) Why is it, to your surprise, you now need reading glasses and you didn't before your cataract surgery? 2) How easy and safe is it to remove and replace an intraocular lens (IOL)? Nearsighted (myopic) people enjoy...
Continue ReadingCataract development is almost always quite slow and gradual. Typically one eye will get worse sooner than the fellow eye. Most people do not notice any sort of sudden change in their vision (although that is not impossible). The very earliest symptom of cataract...
Continue ReadingThere really isn't a "hard line" beyond which laser vision correction should not be done -this depends on many factors that can only be evaluated in the course of a thorough ocular examination and biometric testing. This is true with any kind of laser procedure of the...
Continue ReadingLASIK and PRK are both laser vision correction treatments that reshape the cornea. They have been shown in many studies to be equally effective in treating nearsightedness (myopia) and astigmatism. They even use the exact same laser with the same settings for...
Continue ReadingNo. the conjunctiva is the thin, moveable, and semi-transparent layer that covers the white part of the eye (the sclera). It does not extend past the edge of the cornea (the limbus). The iris sits a little behind the cornea. The conjunctiva only extends the other way back...
Continue ReadingLASIK.com re-directs to Laser Vision Institute's website which says "PRICES START AS LOW AS $220* PER EYE." But the asterisk refers to fine print which explains this does not apply to the overwhelming number of myopic patients. The patients who do qualify have such a low...
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