Med-Surg Nursing - 20
Terms
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- anisocoria
- pupils are unequal in size (constricted)
- aqueous humor
- a clear watery fluid that fills the anterior and posterior chambers of the anterior cavity of the eye
- astigmatism
- an unevenness in the corneal or lenticular curvature, causing horizontal and vertical rays to be focused at two different points on the retina, which results in visual distortion
- conjunctiva
- a transparent mucous membrane that covers the inner surfaces of the eyelids
- hyperopia
- farsightedness; the focus of light rays behind the retina requiring the use of accommodation to focus for near and far objects
- myopia
- nearsightedness
- nystagmus
- an abnormal involuntary repetitive movement of the eyes
- presbycusis
- hearing loss due to aging
- presbyopia
- farsightedness resulting from a decrease in the accommodative ability of the eye as a result of aging
- refraction
- the ability of the eye to bend light rays so that they fall on the retina
- retina
- the innermost layer of the eye that extends and forms the optic nerve
- sclera
- an opaque structure composed of collagen fibers meshed together that encircles the globe of the eye; commonly referred to as the "white" of the eye
- tinnitus
- ringing in the ears