Ophtho terminology 1

Question 1

OD

Answer 1

Right

Question 2

OS

Answer 2

Left

Question 3

OU

Answer 3

Both eyes

Question 4

Photopic

Answer 4

well lit environment

Question 5

Scotopic

Answer 5

Dark environment

Question 6

Retroillunimination

Answer 6

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

Question 7

Retropulsion

Answer 7

Applying light pressure to both ass to assess for asymmetry

*space occupying lesions add resistance

Question 8

Corneal ulceration

Answer 8

disruption of corneal epithelium and exposure of the corneal stroma

Question 9

Jones test

Answer 9

application of fluorescein dye

Positive - appears at the nares = patent nasolacrimal duct

Question 10

Seidel test

Answer 10

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

Question 11

Bony orbit

Answer 11

part of adnexa, conical bony continuing eyeball

Question 12

Periorbital cone

Answer 12

supportive cone like structure

eyeball, extraoccular m, fat, vessels, n, fascia

Question 13

Orbital ligament

Answer 13

forms lateral boundary of cats and dogs

Question 14

Exophthalomas

Answer 14

abnormal protrusion - NORMAL size

Question 15

Buphthalmos

Answer 15

abnormal enlargement of the eyeball - NORMAL position

ie glaucoma

Question 16

Enophthalmos

Answer 16

abnormal recession within orbit

Question 17

Stabismus

Answer 17

deviation of one or both eyes

Question 18

Horners syndrome

Answer 18

sympathetic denervation of the eye and ocular adnexa

CS: enophthalmos, ptosis, miosis, protrusion of 3rd eyelid

Question 19

Microphthalmos

Answer 19

Congential small and malformed globe

Question 20

Phthisis bulbi

Answer 20

acquired shrunken globe

ie inflammation

Question 21

Proptosis

Answer 21

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

Question 22

Tarsus

Answer 22

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

Question 23

Meibomian glands

Answer 23

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

Question 24

Canthus

Answer 24

convergence of upper and lower eyelids

Question 25

Palpebral fissue

Answer 25

Areas outlined by upper and lower eyelid margins

Question 26

Ptosis

Answer 26

drooping eyelid caused by sympathetic denervation (HORNERS)

Question 27

Lagophthalmos

Answer 27

Incomplete eyelid closure/coverage of the globe

Question 28

Eyelid margin

Answer 28

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

Question 29

Entropion

Answer 29

rolling of eyelid margin - inward | Hairs touch ocular surface

Question 30

Ectropion

Answer 30

Rolling of eyelid margin - outward | 2˚ keratitis, conjunctivitis

Question 31

Blepharospasm

Answer 31

Spasm of orbicularis oculi m | Squinting

Question 32

Tarsorrhaphy

Answer 32

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

Question 33

Trichiasis

Answer 33

Hairs growing from normal skin reach corneal and or conjunctival surface

Question 34

Distichia

Answer 34

Cilia which emerge from meibomian glands

Question 35

Ectopic cilia

Answer 35

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

Question 36

Blepharitis

Answer 36

inflammation of the eyelids

Question 37

conjunctival fornix

Answer 37

where palpebral and bulbar conjunctiva meet

Question 38

Palpebral and bulbar conjunctiva

Answer 38

line inner eyelid and anterior globe

Question 39

Epiphora

Answer 39

abnormal overproduction of tears

Question 40

Conjunctival lymphoid follicles

Answer 40

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

Question 41

Goblet cells

Answer 41

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

Question 42

Mucoid discharge

Answer 42

common CS w/ conjunctivitis (goblet cell origin)

Question 43

Mucopurulent discharge

Answer 43

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

Question 44

Conjunctival hyperemia

Answer 44

congestion of superficial vessels in conjunctiva - Superficial disease

Question 45

Episcleral injection

Answer 45

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

Question 46

Keratitis

Answer 46

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

Question 47

Ghost vessels

Answer 47

non-perfused corneal blood vessel (previous keratitis)

Question 48

Chemosis

Answer 48

Edema of conjunctiva

Question 49

Symblepharon

Answer 49

Adhesion of the conjunctiva to cornea