The functioning of the human eye and how Lasik can help

Posted in LASIK Surgery on June 25, 2010

Rays of light enter your eye through the cornea, and the cornea acts like a clear front window to the eye. The cornea can bend light rays in the direction of the pupil and this allows light to freely pass through.

The Parts of An Eye - The pupil is a dark size-changing hole in the middle of the iris. The iris is like a cameras shutter. It can enlarge and shrink an image, although this depends on the amount of light that enters the eye. Once it passes through the iris, the ray of light reaches the eye's crystalline lens. The crystalline lens is a flexible, clear structure that works like the lens of a camera. It can shorten and lengthen its width in order to efficiently focus.

The Retina and The Optic Nerve - The retina acts like the film in a camera and collects all the rays of light which are present. The retina then processes them into a light impulse that is spread across millions of tiny nerve endings. This then reaches the optic nerve.

How Does Lasik Help - A keratoconus cornea is an irregularly shaped cornea that does not accurately gather the rays of light. These rays of light enter the eye at various angles but not one common point. This causes a blurred and distorted image. With the help of Lasik eye surgery, you can effectively fix the shape of the cornea. This will enhance your vision and eyesight.

Lasik is a revolutionary eye surgery which has enhanced the eyesight of people all over the world.