Ophtho terminology 1 Flashcards Preview

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Flashcards in Ophtho terminology 1 Deck (49)
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1

OD

Right

2

OS

Left

3

OU

Both eyes

4

Photopic

well lit environment

5

Scotopic

Dark environment

6

Retroillunimination

Using light shone into the eye to reflect against internal structure and highlight features

7

Retropulsion

Applying light pressure to both ass to assess for asymmetry
*space occupying lesions add resistance

8

Corneal ulceration

disruption of corneal epithelium and exposure of the corneal stroma

9

Jones test

application of fluorescein dye
Positive - appears at the nares = patent nasolacrimal duct

10

Seidel test

Application of fluorescein dye appearance of AH leaking through (?)
Positive - AH leaking through - confirm perforation

11

Bony orbit

part of adnexa, conical bony continuing eyeball

12

Periorbital cone

supportive cone like structure
eyeball, extraoccular m, fat, vessels, n, fascia

13

Orbital ligament

forms lateral boundary of cats and dogs

14

Exophthalomas

abnormal protrusion - NORMAL size

15

Buphthalmos

abnormal enlargement of the eyeball - NORMAL position
ie glaucoma

16

Enophthalmos

abnormal recession within orbit

17

Stabismus

deviation of one or both eyes

18

Horners syndrome

sympathetic denervation of the eye and ocular adnexa
CS: enophthalmos, ptosis, miosis, protrusion of 3rd eyelid

19

Microphthalmos

Congential small and malformed globe

20

Phthisis bulbi

acquired shrunken globe
ie inflammation

21

Proptosis

anterior displacement of the glove - eyelids caught behind equator of globe

22

Tarsus

fibrocartilaginous layer of eyelid containing meibomian glands
*** Holding layer for surgiacl eyelid clsoure

23

Meibomian glands

within tarsal layer - producing lipid layer (sebum) to tear film

24

Canthus

convergence of upper and lower eyelids

25

Palpebral fissue

Areas outlined by upper and lower eyelid margins

26

Ptosis

drooping eyelid caused by sympathetic denervation (HORNERS)

27

Lagophthalmos

Incomplete eyelid closure/coverage of the globe

28

Eyelid margin

ID by grey line of meibomian glands
**important for surgical closures

29

Entropion

rolling of eyelid margin - inward
Hairs touch ocular surface

30

Ectropion

Rolling of eyelid margin - outward
2˚ keratitis, conjunctivitis

31

Blepharospasm

Spasm of orbicularis oculi m
Squinting

32

Tarsorrhaphy

Sx procedure: suture eyelids closed
Temporary/permanent
Partial/complete

33

Trichiasis

Hairs growing from normal skin reach corneal and or conjunctival surface

34

Distichia

Cilia which emerge from meibomian glands

35

Ectopic cilia

cilli protruding through palpebral conjunctiva
12 o'clock
severe, intermittent pain and corneal ulceration

36

Blepharitis

inflammation of the eyelids

37

conjunctival fornix

where palpebral and bulbar conjunctiva meet

38

Palpebral and bulbar conjunctiva

line inner eyelid and anterior globe

39

Epiphora

abnormal overproduction of tears

40

Conjunctival lymphoid follicles

response to non-specific Ag stimulation
Presence anywhere but the bulbar surface of the 3rd eyelid is abnormal = conjunctivitis
AKA they are only normal on the 3rd eyelid

41

Goblet cells

present in conjunctival epithelium - produce inner most mucus layer of tear film

42

Mucoid discharge

common CS w/ conjunctivitis (goblet cell origin)

43

Mucopurulent discharge

KCS due to loss of aqueous portion of tear film
Bacterial overgrowth, WBC recruitment

44

Conjunctival hyperemia

congestion of superficial vessels in conjunctiva - Superficial disease

45

Episcleral injection

Refers to congestion of deep conjunctival vessels (episcleral) = deep disease process

46

Keratitis

Inflammed cornea: neovascularization, pigementation, fibrosis, ulceration, WBC infiltration

47

Ghost vessels

non-perfused corneal blood vessel (previous keratitis)

48

Chemosis

Edema of conjunctiva

49

Symblepharon

Adhesion of the conjunctiva to cornea