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PCP > Med Term 3 Ophthalmology > Flashcards

Med Term 3 Ophthalmology Flashcards

1
Q

Aque/o

A

Water; anterior chambe is the open area of the eye anterior to the lens and is filled with a watery fluid called aqueous humor

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2
Q

Blephar/o

A

Eyelid; upper and lower eyelids are folds of skin that close to protect the anterior surface of eyeball; eye lashes are called cilia

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3
Q

Choroid/o

A

Choroid Layer; Middle layer of wall of eyeball; contains many blood vessels

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4
Q

Conjunctiv/o

A

Conjunctiva; mucous membrane that protects anterior surface of eyeball and turns underneath to line eyelids

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5
Q

Core/o

A

Pupil; opening in the Center of the iris; becomes larger or smaller to control amount of light entering inside of eyeball

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6
Q

Corne/o

A

Cornea; anterior portion of sclera; transparent or allow light through and curved to bend light rays so that they focus on retina

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7
Q

Cycl/o

A

Ciliary Body; ring of muscle around outer edge of lens; attached to lens by suspensory ligaments, pulls on edges of lens to change its shape to focus image onto retina

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8
Q

Dacry/o

A

Tears; watery fluid secreted by lacrimal glands that moisten and cleanse anterior surface of eyeball; lacriumal glands are located superior and lateral to eyeball and under orbital bone; tears collect in corner of eye and flow though lacrimal canals or lacrimal sac

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9
Q

Ir/o

A

Iris

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10
Q

Kerat/o

A

Cornea

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11
Q

Lacrim/o

A

Tears

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12
Q

Ocul/o

A

Eye ; complex sensory organ that allows people to see, wall is made of sclera choroid and retina

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13
Q

Ophthalm/o

A

Eye

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14
Q

-opia

A

Vision

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15
Q

Opt/o

A

Vision

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16
Q

Phac/o

A

Lens; transparent structure lying behind iris and pupil; bends light rays passing through it so that they are focused on retina

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17
Q

Pupill/o

A

Pupil

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18
Q

Retin/o

A

Retina; inner layer of eyeball; contains light receptors called rods and cones

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19
Q

Rods

A

See in dim light and grey tones

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20
Q

Cones

A

See in bright light and in colour

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21
Q

Macula lutea

A

Posterior wall of eyeball, directly opposite lens

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22
Q

Fovea Centralis

A

Small pit in Center of macula, contains only cones and is point of clearest vision

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23
Q

Scler/o

A

Sclera; outermost layer of eye, commonly called white of eye, very fibrous and tough

24
Q

ton/o

A

Tension, pressure

25
Q

Vitre/o

A

Glassy; refers to gel like shiny substance, vitreous humor, that fills posterior chamber, the large open cavity between lens and retina

26
Q

Accommodation

A

Ability of eye to adjust various in distance

27
Q

Achromatopsia

A

Profound inability to see in color from birth; also called color blindness

28
Q

Amblyopia

A

Loss of vision not due to any disease; not correctable with glasses persons with amblyopia wear a patch one eye to for affected eye to work; commonly called lazy eye

29
Q

Astigmatism

A

Uneven bending of light rays caused by irregular curvature of cornea; image is fuzzy, corrected with cylindrical lenses

30
Q

Cataract

A

Lens becomes cloudy or opaque; results in whole vision field becoming blurry; treatment is usually surgical removal of cataracts and replacement of lens with artificial lens

31
Q

Colour vision test

A

Use of multicoloured charts to determine ability of patient to recognize colour

32
Q

Corneal abrasion

A

Scraping away of outer layer of cornea

33
Q

Cryoextraction

A

Procedure to remove lens with cataract using an extremely cold probe

34
Q

Diabetic retinopathy

A

Development of small hemorrhages and edema in retina as result of diabetes myelitis, dark spots appear in visual field; laser surgery may be necessary for treatment

35
Q

Fluorescein

A

Bright green fluorescent dye, fluorescent dye, fluorescein, to examine movement of blood through vessels of eye

36
Q

Glaucoma

A

Condition resulting from increase intraocular pressure, which if untreated, can result in atrophy of optic nerve and blindness; patient notices that vision becomes blurry around edges; treated with medication and surgery

37
Q

Hyperopia

A

Visual condition in which person can see things in distance but has trouble reading material at close range; also known as farsightedness corrected by convex lens

38
Q

Intraocular lens

A

Replacing defective natural lens with artificial lens following cataract extraction

39
Q

Laser-assisted in situ keratomilesusis

A

Correction of myopia using laser surgery to remove minute slices of corneal tissue

40
Q

Laser retinal photocoagulation

A

Using laser to make pinpoint scars to stabilize a detached or torn retina

41
Q

Macular degeneration

A

Deterioration of macula kites of retina; patient notices loss of vision in center of visual field

42
Q

Myopia

A

Visual condition in which person can see things close up but distance vision is blurred; also known as nearsightedness corrected by concave lens

43
Q

Nyctalopia

A

Poor vision at night or in dim light. Called night blindness

44
Q

Nystagmus

A

Jerky-appearing involuntary eye movement

45
Q

Optician

A

Professional trained to make corrective lenses and fit eyeglasses and contact lenses

46
Q

Phacomulsification

A

Use of high frequency sound waves to break up cataract, which is then removed by suction with needle

47
Q

Photophobia

A

Excessive sensitivity to light leading to avoidance; not actual fear of lights

48
Q

Photorefractive keratectomy

A

Use of laser to reshape cornea to improvise visual acuity

49
Q

Radial keratotomy

A

Surgery with spokelike incision in cornea to flatten it, done to correct nearsightedness

50
Q

Refractive erro

A

Defect in ability of eye to bend light rays to focus image properly on fovea centralis, occurs in myopia and hyperopia

51
Q

Retinal detachment

A

Occurs when retina becomes separated from choroid layer this separation seriously damages blood vessels and nerves resulting in blindness

52
Q

Slit lamp microscope

A

Instrument used in ophthalmology for examining posterior surface of cornea

53
Q

Snellen chart

A

Chart used for testing visual acuity, 20 feet 20/20 vision

54
Q

Strabismus

A

Weakness of external eye muscle, corrected wth glasses, eye excel uses and or surgery. Cross eyed

55
Q

Strabotomy

A

Incision into eye muscles to correct strabismus

56
Q

Stud

A

Small purulent infection of sebaceous gland of eye

57
Q

Visual acuity test

A

Measurement of sharpness of patients vision

PCP (14 decks)

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