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Ophthamology > Overview of the Eyes > Flashcards

Overview of the Eyes Flashcards

1
Q

What are the most frequent cause of blindness worldwide?

A

Cataracts
Glaucoma
Age-related macular degeneration
Diabetic retinopathy
Trachoma (chlamydia)

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2
Q

This sign usually indicates disease of the retina or optic nerve

A

Monocular Field Loss

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3
Q

OD

A

right eye

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4
Q

OS

A

left eye

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5
Q

OU

A

both eyes

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6
Q

Ametropia

A

refractive errors

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7
Q

Diplopia

A

double vision

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8
Q

Amblyopia

A

lazy eye

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9
Q

Strabismus

A

eye turned outward

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10
Q

Anisocoria

A

unequal pupil size

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11
Q

This part of the eye is a remarkable, steeply curved, tough, transparent tissue

It is the most important part of the eye in focusing images on the retina

The normally smooth, lustrious surface of this is covered by epithelium, which is capable of rapid regeneration following injury

A

Cornea

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12
Q

One of the main producers of tears, mostly useful in crying or rapid changes (wind blows dust in eye for example)

Can squeeze out 4-5 tears and wash away dirt

A

Lacrimal Gland

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13
Q

Every day moisturizing of eyes (not lacrimal gland)

A

Microscopic glands

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14
Q

Acts as suction when you blink – sucks up the tears and drain into nose

Suction NOT gravity

A

Punta

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15
Q

Sebaceous gland that secretes the oily component of tears

A

Meibomian gland

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16
Q

Numerous meibomian glands along with connective tissue make up what that provides eyelid support

A

the tarsal plate

17
Q

Most important examination of the eye

A

Visual Acuity

18
Q

Perfect vision

20/20

A

Emmetropia

19
Q

“near sighteded”

Too much power

it is in best focus for near tasks

A

Myopia

20
Q

“far sighted”

Too little power

Not enough power to see at any distance, but it is in better focus for distance than up close

A

Hyperopia

21
Q

The lens is shaped like a football

A warped image is formed on the retina

A

Astigmatism

22
Q

Unable to see up close due to lens changes

Can be pharmacologic or physiologic

Age related

A

Presbyopia

Ophthamology (6 decks)

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