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Bifocal
Two different prescriptions in one eyeglass lens.
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Cataract
Clouding of the lens of the eye.
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Environment
The world around you.
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Glaucoma
Increased pressure in the eye, due to the inability of the fluid in the eye(vitreous humor) to circulate properly.
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Myopia
Difficulty seeing things that are far away.
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Peripheral Vision
Vision seen to the side while looking straight ahead.
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Presbyopia
Decrease in the ability of the eye to focus.
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Presbycusis
Hearing loss for high-pitched sounds.
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Senses
Sight, hearing, smell, taste, and touch.
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Sensory System
Eyes, ears, nose, tongue, and skin.
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Stimulus
Action that causes a response.
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Tinnitus
Constant ringing in the ear.
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