Fig.1 Anatomy of the eye
(Illustration not to proportions) |
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Human eye is a highly complex phenomenon, in
which there are several mechanisms acting coherently to yield us the
"Vision". Cornea is the transparent portion through which
light rays pass in (Fig 1), which is controlled by the aperture
of pupil with "Iris" and then the "Lens" focuses the incoming light
signals on to the screen called "Retina" which is again one of the
wonderful creations of the nature that converts the physical light into a
neural signal perceivable by our higher optical centre in the brain and
sends the signals through the "Optic Nerve". The vision could be jeopardized even any
if one of the above components of the eye are damaged. |
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