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EVIT: Chapter 11 - Senses > Eye - disorders > Flashcards

Eye - disorders Flashcards

1
Q

define HYPEROPIA

A

farsightedness bc light rays are behind retina so can’t see near

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2
Q

cause: HYPEROPIA

A

abnormally short eyeball

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3
Q

define MYOPIA

A

nearsightedness bc light ray front of retina so can’t see far

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4
Q

cause: MYOPIA

A

abnormally long eye

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5
Q

define PRESBYOPIA

A

loss of elasticity in lens

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6
Q

describe ASTIGMATISM

A

imperfect curvature of cornea/lens causing blurred vision & gen occur w/hyperopia or myopia

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7
Q

cause: ASTIGMATISM

A

congenital

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8
Q

define: STRABISMUS

A

deviation of eye so the 2 don’t work together

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9
Q

cause: STRABISMUS

A

lack of coordination of extrinsic eye muscles

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10
Q

define AMBLYOPIA/PERSISTENT STRABISMUS

A

loss of vision bc can’t work w/other eye; the brain can’t see

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11
Q

aka: amblyopia

A

persistent strabismus/lazy eye

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12
Q

define CATARACT

A

clouding of lens causing blurred/partial vision

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13
Q

define CONJUNCTIVITIS

A

inflammation of conjunctiva & is highly contagious

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14
Q

aka: conjunctivitis

A

pink eye

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15
Q

cause: conjunctivitis

A

bacterial infection

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16
Q

define GLAUCOMA

A

increase pressure on aqueous humor

17
Q

cause: glaucoma

A

aqueous humor not reabsorbed into blood

18
Q

define DIABETIC RETINOPATHY

A

diabetes cause blood vessels hemorrhages of choroid

19
Q

define RETINAL DETACHMENT

A

retina separates from choroid

20
Q

cause: RETINAL DETACHMENT

A

trauma/accumulation of fluid of eye

21
Q

define MACULAR DEGENERATION

A

macula lutea/fovea centralis is damaged

22
Q

s/s: macular degeneration

A

slow/sudden painless loss of central vision

23
Q

purpose of SNELLEN CHART

A

measure acuity

24
Q

what does the bottom number of a the snellen chart fraction mean

A

distance average eye can see a certain line

EVIT: Chapter 11 - Senses (6 decks)

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