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I imagine you are asking about LASIK specifically. If your glasses Rx is truly +5.00 Diopters (not -5.00) then you are farsighted (hyperopic), not nearsighted (myopic). LASIK does not work at all well for hyperopia over about +2.5 Diopters. _Written by J. Trevor...

"PL" or "Pl" means "Plano." The easy way to understand this is to just think of "zero" when you encounter it in a glasses prescription or in any other assessment of refractive error and vision. Historically, lens grinders would have a blank piece of glass with...

Most all retina detachments start as tears or holes. Once these develop, fluid inside the eye can slosh around and start to dissect its way under the edges of the tear, gradually lifting the retina away from its adhesion to the wall of the eye. But why are there holes or...

It does seem as if every other person over 60 is having cataract surgery, doesn't it? This is not because there is a recent dramatic increase in eye disease or deteriorating vision, but because of the intersection of several demographic and technological trends. The...

Great question! You have good insight and are quite right: myopic (nearsighted) people can see up close even after becoming presbyopic! This is because the default focal point for a nearsighted eye is abnormally close -the same reason their distance vision is...

The way we do cataract/lens implant surgery is truly a modern medical miracle. But how quickly we get used to good things and come to think of them as normal and expected. When I started my training in the late 1970s, intraocular lenses (IOLs) for cataract patients were...

LASIK is not necessarily unsuitable for eyes with a great deal of astigmatism, it is unsuitable for eyes with a great deal of myopia (nearsightedness) or Irregular astigmatism. "Astigmatism" just means there is no single focal point. The most common cause for this is a...

Yes, it is. This is not so much a matter of how far you "push" the LASIK, though, it is about how well your eye has the potential to see. 20/20 is average good visual acuity, not perfect vision. Most young people can actually see better than that, if only with...