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diseases and disorders of the eye, matching
blurry images occur because points of light are focused not as points on the retina but as lines
lens becomes increasingly hard and opaque, causes vision to become hazy an distorted
lack of one or more of the 3 cone types that pick up color
inflammation of the conjunctiva which results in reddened and irritated eyes
aqueous humor does not drain properly, backs up and the pressure may increase and compress the retina and the optic nerve
loss of the same side of the visual field of both eyes
farsighted, can see far but not near
nearsighted, can see near but not far away
hindrance in the rod function
infectious form of conjunctivitis caused by bacteria or virus, extremely contagious