P I N T H E B O W L (toilet seat cover at my Opthalmologist's)
Creative Commons License photo credit: Mark BlevisA top priority of any opthalmologist is to ensure that you have no diseases of the eye. Eye specialists want to keep your eyes healthy through regular eye examinations and to ensure that you retain the health function of your eyes for optimal vision. Our eyes are not only the window into our soul but they are the window that allows us to see out into the world.

The function of our eyes is to allow us to see the objects in our surroundings at variable distances and under various conditions of lights. Our eyes are made up of a fairly complex layering of tissue and and structures that enable us to see. Two pockets of transparent fluid—the aqueous and vitreous humours—are what nourishes our eye tissues and help to maintain our eye shape.

The eye is made up of three layers that include an outer protective white coating called the sclera, a middle layer containing blood vessels and the inner layer, or retina, which is the nerve centre that sends information to brain for processing.

The cornea, found at the front of the eye, is a clear section that bends the light rays. The iris, which is an extension of the middle layer, is a spongy, coloured portion of the eye. The pupil is situated in the centre of the iris and is the opening that allows light to enter the eye. The lens is what helps the eye focus the light rays onto photoreceptors, which absorb and convert the light into electrical signals. The optic nerve contains fibres that transmit these signals to the brain for interpretation of the objects seen.

Blindness is defined by the lack of light perception. If a person is completely blind, they suffer from “no light perception.” In order for us to see properly, all the layers and structures of the eye need to be functioning at optimal health. Although recent advances in genetics are allowing us to learn about the root cause of the diseases of the eye, there is still much work to be done in preventing or slowing down the progress of the diseases of the eye.

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