Visual Disturbances Flashcards

0
Q

MYOPIA is corrected by __________.

A

ConCAVE Lenses

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1
Q

This visual disturbance where a person has a LENS that is TOO THICK or EYEBALL that is TOO LONG.

A

Myopia

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2
Q

This visual disturbance where the person has a LENS that is TOO THIN or the EYEBALL is TOO SHORT.

A

Hyperopia

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3
Q

HYPEROPIA is corrected by ____________.

A

ConVEX Lenses

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4
Q

This is a visual disturbance where there is a LACK of ACCOMMODATION because the lens had ELASTICITY and cannot be thickened enough.

A

Presbyopia

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5
Q

PRESBYOPIA is corrected by __________.

A

Bifocals

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6
Q

This visual disturbance is also known as NEARSIGHTEDNESS.

A

Myopia

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7
Q

This visual disturbance is also known as FARSIGHTEDNESS.

A

Hyperopia

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8
Q

BIFOCALS have _______ lenses in the UPPER PART allowing for ________ vision.

A

Thin

Distance

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9
Q

BIFOCALS have _________ lenses on the LOWER part for _________ objects.

A

Thick

Nearby

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10
Q

This is a visual disturbance where the eye has UNEQUAL ARVATURE and the eye may be partly nearsighted, partly farsighted OR BOTH.

A

Astigmatism

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11
Q

True or False: ASTIGMATISM is associated with the retina.

A

FALSE, ASTIGMATISM is associated with the CORNEA.

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12
Q

True or False: with ASTIGMATISM, when light enters the eye, it is refracted more in one direction than the other.

A

TRUE, IN ADDITION it allows only part of the object to be in focus.

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13
Q

This visual disturbance is characterized by CLOUDING of the LENS due to AGING or INJURY.

A

Cataracts

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14
Q

CATARACTS were FORMALLY corrected by ______________.

A

Using glass with THICK lens

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15
Q

CATARACTS is CURRENTLY corrected by ______________.

A

Implanting a SUBSTITUTE LENS

16
Q

This visual disturbance occurs when the BRAIN SUPPRESSES INPUT from one eye and depends upon info from the other eye.

A

Amblyopia

17
Q

AMBLYOPIA is corrected by ____________.

A

Initially COVERING THE GOOD EYE, forcing the weak to function.

18
Q

This visual disturbance occurs when the AQUEOUS HUMOR ACCUMULATES and pressure is put on the OPTIC NERVE.

A

Glaucoma

19
Q

GLAUCOMA was FORMALLY corrected by ___________.

A

Iridectomy

20
Q

GLAUCOMA is CURRENTLY treated with ________________.

A

A Laser