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the process by which the eye's lens changes shape to focus near or far objects on the retina
group of diseases of the eye characterized by increased intraocular pressure that results in damage to the optic nerve, producing defects in vision
Able to see objects at a distance clearly but having trouble seeing things up close; farsighted
reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
pain in the eye resulting from exposure to bright light (often associated with albinism)
farsightedness; person can see print and objects from farther away than considered normal
inability to hear high-frequency sounds or to discriminate a variety of simultaneous sounds caused by degeneration of the hair cells in the inner ear
hearing test using a tuning fork; checks for differences in bone conduction and air conduction
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