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Nursing 101 & 102 > Eye > Flashcards

Eye Flashcards

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0
Q

Keeps foreign bodies out

A

Lashes and brows

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1
Q

The union of cranial and facial bones that make up the protective socket for the eye

A

Orbit

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2
Q

Eyelid - thin elastic fold of skin.

A

Palpebrae

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3
Q

How many times does the average person blink?

A

15 times/min

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4
Q

Thin transparent mucous membranes that secret mucous and oil to keep the cornea moist, clear, and free from friction.

A

Conjunctiva

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5
Q

This conjunctiva lines the eyelid

A

Palpebral conjunctiva

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6
Q

This conjunctiva lines the sclera

A

Bulbar conjunctiva

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7
Q

Produces tears that flow from the outer canthus of the eye to the inner canthus; bacteriostatic and foreign body removal

A

Lacriminal gland

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8
Q

Tiny opening in the upper and lower lids

A

Puncta/punctum

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9
Q

Light passes through the cornea to the pupil to the lens to the vitreous humor to the retina then converted into a nerve impulse and then the optic nerve then carries it to the brain at the occipital lobe.

A

Light pathway

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10
Q

Muscles that are paired to look both ways; intrinsic and extrinsic

A

Occular muscles

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11
Q

Involuntary occular muscles

A

Extrinsic

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12
Q

Involuntary occular muscles

A

Intrinsic

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13
Q

Composed of collagen fibers meshed together that give a color of white; maintains the shape of the eye; protects from trauma

A

Sclera

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14
Q

Where focusing starts; most anterior portion; transparent/avascular and gets oxygen from tears; convex, dome like structure

A

Cornea

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15
Q

Provides color depending on the amount of melanin; highly vascular; donut shaped

A

Iris

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16
Q

Opening in the center of the iris

A

Pupil

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17
Q

Located beneath the sclera; vascular supplies blood to retinal layer

A

Choroid

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18
Q

Connects the choroid to the iris and produces and secretes aqueous humor

A

Ciliary body

19
Q

Behind the pupil almost completely transparent; biconvex; fine focusing mechanisms

A

Lens

20
Q

Thin and wet and consistency of tissue paper; converts light to an impulse that the brain can vision; extends and forms the optic nerve; vascular

A

Retina

21
Q

The retina contains two cells that are photoreceptors

A

Rod - dim vision

Cones - bright environments

22
Q

Area of the retina; responsible for central vision free of blood cells; has rods and cones

A

Macula

23
Q

Center of macula; most sensitive area; densely packed cones; no rods here at all; responsible for the sharpest visual acuity

A

Fovea centalis

24
Q

The part of the retina that has the physiologic depression or cup where the blood supply and optic nerve occur

A

Optic disk

25
Q

The chamber where the cornea to lens is. Contains aqueous humor.

A

Anterior chamber

26
Q

The chamber behind the iris. Contains aqueous humor.

A

Posterior chamber.

27
Q

Behind the lens; helps give shape. Vitreous humor.

A

Posterior or Vitreous cavity

28
Q

Cornea to the aqueous humor to the pupil to the lens to the vitreous humor to the retina to the optic disk to the optic chiasm for right or left optic tract to the occipital lobes

A

How sight travels

29
Q

Eyelid drooping

A

Ptosis

30
Q

Pupils are different sizes

A

Anisocoria

31
Q

Bulge in the eyes

A

Exophthalmos

32
Q

Sunken in eyes

A

Enopthamlos

33
Q

Snellen chart of 20/200 equals

A

Legally blind

34
Q

This tests near vision for 40+ and older

A

Jaegar chart

35
Q

Multiple lenses mounted on a wheel

A

Refractometry

36
Q

The opposite pupil constricting when a penlight it placed

A

Consentuational constriction

37
Q

Opthamoscope shows refraction of the retinal layer

A

Red reflex

38
Q

Normal intraoccular pressure is

A

10-21mmHg

39
Q

Taping the cornea after anesthesia to test for glaucoma

A

Tonopen and tonometer

40
Q

Invasive procedure to to photograph the eye and vascular space

A

Florescein angiography

41
Q

Similar to angiography but do not have to have pupils dilated

A

Optical coherence tomography

42
Q

Dots arranged in simple patterns to test for color vision

A

Ishihara test

43
Q

Would look blurred with a gray area if eye damage - determines macular degeneration

A

Amsler grid

44
Q

Double vision

A

Diploplia

45
Q

Milky white or yellow ring around the iris, doesn’t affect vision; from cholesterol deposits; seen in geriatric patients

A

Arcus senilis

Nursing 101 & 102 (19 decks)

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