Ever wondered how some people can be short-sighted and long-sighted at the same time? Well one has to do with the lens, and one has to do with the cornea.
Short-sighted people usually have a cornea that isn’t optimally shaped. All laser surgery for myopia has to do, is shave away superficial bits of the cornea to adjust the shape.
The kind of "long-sightedness" that comes as the years pass – 45 is often the critical age – has to do with the lens. The flexibility of the lens diminishes until we’re forced to develop long arms when we’re reading (or give up, and get reading glasses).
Click here for an opthalmologist’s understanding at one of our most fascinating organs. Guaranteed, you’ll develop a new appreciation for the complexity and sophistication of the eye.
(Heather Parker, Health24, March 2010)
Graphic developed by Lensshopper - an online guide to contact lenses and general eye care information.
It’s interesting what the world looks like if you have a cataract, glaucoma etc