FUNCTIONS OF RETINA :::
Functions of retina are :
(1) To impart vision and colour vision
(2) conduction of light reflex
(3) conduction of accommodation reflex and
(4) To help in maintenance of body equilibrium
Protective Mechanism of eye:: It consists of orbit eyelids and lachrymal apparatus The orbits are bony cavities situated in the upper part of the face one on each side of the nose They are conical in shape They hold the two eyeballs in position and protect them
The eyelids are two opaque movable musculo-cutaneous curtains in the front of the eyeball The inner surfaces of the lids are lined by a mucus membrane known as conjunctiva
The lachrymal gland secretes a saline like fluid in front of the eye which keeps the eyes clean and moist During emotions it overflows in the form of tears
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