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Opthamology > Terms > Flashcards

Terms Flashcards

1
Q

Adnexa

A

tissues surrounding the globe

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2
Q

Anterior Segment

A

contains aqueous humor, includes anterior & posterior chambers: inside of cornea to lens

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3
Q

Blepharitis

A

inflammation of eyelids

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4
Q

Blepharospasm

A

squinting, blinking, involuntary contraction of eyelids

indicates pain

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5
Q

Blepharoedema

A

swelling of eyelids often seen with adverse vaccine reaction or insect bite

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6
Q

Buphthalmos

A

enlargement of the globe due to glaucoma (increased intraocular pressure)

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7
Q

Chemosis

A

swelling (edema) of conjunctiva

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8
Q

Choroid

A

posterior part of uvea, vascular layer located between the sclera and retina

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9
Q

Ciliary Body

A

part of uvea behind iris

not normally seen on ocular exam

produces aqueous

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10
Q

Corectopia

A

abnormal location of pupil

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11
Q

Dyscoria

A

abnormal shape to pupil

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12
Q

Dacryo

A

refers to lacrimal system

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13
Q

Dacryocystitis

A

inflammation of Nasolacrimal system

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14
Q

Descemet’s Membrane

A

basement membrane of corneal endothelial cells

innermost layer of cornea

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15
Q

Descemetocele

A

exposure of Descemet’s membrane when corneal epithelium and stroma are lost

if breached, the eye is perforated

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16
Q

Enophthalmos

A

recession of the globe deeper into the orbit due to loss of sympathetic tone, loss of periorbital fat, or mass effect

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17
Q

Epiphora

A

overflow of tears

18
Q

ERG

A

electroretinogram

measures electrical potential of photoreceptor cells

19
Q

Exophthalmos

A

anterior displacement of the globe from the normal orbital position, globe remains behind eyelids

20
Q

Flare

A

protein seen in the aqueous due to vascular leakage in uveitis

21
Q

Fundus

A

area seen through the lens

optic nerve, retinal vessels, tapetal & non-tapetal areas

22
Q

Glaucoma

A

loss of ganglion cells and optic nerve atrophy usually due to increased intraocular pressure

23
Q

Gray line

A

refers to areas along meibomian gland openings, surgical reference point

24
Q

Hyphema

A

RBC’s in anterior chamber

25
Q

Hypopyon

A

Neutrophils in anterior chamber

26
Q

Normal IOP

A

10-20 mmHg in dogs

may be slightly higher in cats and horses

27
Q

KP’s

A

keratic precipitates,

aggregates of inflammatory cells-lymphocytes, on corneal endothelium

28
Q

Keratitis

A

inflammation of cornea

29
Q

Keratoconjunctivitis Sicca

A

insufficient aqueous tear production

Schirmer Tear Test = <15mm/min in dogs with clinical signs

30
Q

Lagophthalmos

A

lids do not close completely over cornea (prominent eye or neurologic deficit

31
Q

Macroblepharon

A

too large eyelid opening for size of globe

32
Q

Meibomian gland

A

lipid secreting glands along lid margins

33
Q

Microphthalmia

A

congenitally small globe

34
Q

Miosis & Mydriasis

A

Miosis = constricted pupil
Mydriasis = dilated pupil

35
Q

Phacoemulsification

A

surgical breakdown of lens for removal

36
Q

3 Layers of tear film:

A

Inner
- MUCIN secreted by goblet cells
- located in palpebral conjunctiva
- keeps corneal surface smooth and allows adhesion of aqueous tears to lipophilic cornea

Middle
- AQUEOUS layer secreted by orbital lacrimal gland and gland of nictitating membrane

Outer
- LIPID layer secreted by meibomian glands
- located along the eyelid margins
- holds aqueous tears against eye, prevents evaporation and ‘spilling of tears’

37
Q

Uvea

A

MIDDLE vascular layer of the eye, iris, ciliary body and choroid

38
Q

Uveitis

A

inflammation of uvea

39
Q

Anterior uveitis

A

inflammation of iris & ciliary body

40
Q

Posterior uveitis

A

inflammation of choroid

41
Q

Panuveitis

A

inflammation of anterior and posterior uvea

Opthamology (3 decks)

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