Ophtho terminology 3

Question 1

Uvea

Answer 1

Iris, ciliary body, choroid

Vascular tunic of globe

Question 2

Uveitis

Answer 2

breakdown of blood ocular barrier (inflammation)

Question 3

Anterior uveitis

Answer 3

inflamed iris and ciliary body

Question 4

Posterior uveitis

Answer 4

inflammed choroid - likely chorioretinitis

Question 5

Panuveitis

Answer 5

inflammation of uvea: iris, ciliary body and choroid

Question 6

Endophthamitis

Answer 6

inflammation of all structures internal to fibrous tunic

Question 7

Fibrous tunic

Answer 7

cornea and slera

Question 8

Panophthalmitis

Answer 8

inflammation of all structures of the globe

Question 9

Aqueous flare

Answer 9

PATHOGNOMIC sign: anterior uveitis - proteins suspended in anterior chamber

Question 10

Keratic precipitates

Answer 10

PATHOGNOMIC sign: uveitis -cellular debris adheres to corneal endothelium - constant cycling convection currents

Question 11

ciliary flush

Answer 11

360˚ deep corneal neovascularization

Question 12

Fibrin

Answer 12

PATHOGNOMIC sign: uveitis - develops in the eye and adheres to delicate structures -> synechia

Question 13

Hypopyon

Answer 13

PATHOGNOMIC sign: uveitis - wbc settles in anterior chamber

Question 14

miosis

Answer 14

constriction of the pupil

Question 15

Dyschoria

Answer 15

abnormally shaped iris - posterior synechia?

Question 16

Synechia

Answer 16

adhesion of the iris to the lens (posterior)

Adhesion of the iris to the cornea (anterior)

Question 17

Iris bombe

Answer 17

360˚ posterior synechia - AH becomes entrapped within posterior chamber causing iris to bulge forward

Question 18

Hyphema

Answer 18

blood that settles within the anterior chamber - common with uveitis and indicative of large breakdown in blood ocular barrier
Hypertension and coagulopathies?

Question 19

Hypotony

Answer 19

Decreased intraocular pressure

Consistent with anterior uveitis

Question 20

Cycloplegia

Answer 20

paralysis of ciliary body muscle - atropine

can relieve pain from spasms

Question 21

Nuclear sclerosis

Answer 21

hardening of the lens that occurs natural in animals.
Lens appears cloudy - doesn’t indicate vision loss
6-7yrs

Question 22

Cataract

Answer 22

Any opacity of the lens or lens capsule that prevents light passage

Question 23

Parallax

Answer 23

utilizing the appearance of one object relative to another to determine depth

Question 24

Lens zonules

Answer 24

small collagen fibrils arising from ciliary body that attach to the equater of the lens, securing the lens position wihtin the eye

Question 25

Intumsecent cataract

Answer 25

Swollen | common in diabetics - driven by osmotic effect of sorbitol trapped in lens capsule

Question 26

Phacoemulsification

Answer 26

modern technique for cataract surgery - lens broken by US eneregy and aspiration

Question 27

Aldose reductase

Answer 27

enzyme that converts glucose to sorbitol - causes osmotic pulling effect

Question 28

Lens luxation

Answer 28

complete detachment of the lens from lens zolnules - shifts side to side revealing aphakic cresent

Question 29

Aphakic crestn

Answer 29

Phakic = lens | Lens subluxation displaces cresent where lens is visible displaced

Question 30

Iridodonesis

Answer 30

movement of iris that occurs 2˚ to lens instability

Question 31

Phacodonesis

Answer 31

movement of lens 2˚ to lens instability

Question 32

Glaucoma

Answer 32

vision loss 2˚ to elevated intraocular pressure and damage to optic n. and retina

Question 33

Carbonic anhydrase

Answer 33

enzyme in ciliary body that aids in production of AH | Target for glaucoma tx

Question 34

Buphthalmos

Answer 34

enlargement of globe - glaucoma

Question 35

Haab's Stria

Answer 35

fractures in descement's membrane that occur 2˚ to buphthalmos and stretching of globe subtle white streaks across cornea

Question 36

Goniodysgenesis

Answer 36

abnormal iridocorneal angle conformation - narrowed or closed sheets of abnormal tissue often coat the angle

Question 37

Gonioscopy

Answer 37

Use of goniolens applied to the surface of the eye which allows light to bend into iridocorneal angle and facilitates examination

Question 38

Fundus

Answer 38

Interior surface of posterior segment of the eye: retina, optic nerve, choroid

Question 39

Holangiotic vascular pattern

Answer 39

entire neurosensory retina gets blood

Question 40

Merangiotic vascular pattern

Answer 40

neurosensory retinal vessels localized to horizontal streak on either side of optic nerve Lagomorphs

Question 41

Paurangiotic vascular pattern

Answer 41

neurosensory retinal vessels only near optic enerve | Equids

Question 42

Anangiotic vascular pattern

Answer 42

neurosensory retina is absent of any blood vessels

Question 43

Retinal detachment

Answer 43

separation of neurosensory retina from retinal pigment epithelium Intraretinal breach

Question 44

Retinal dialysis

Answer 44

tearing of retina from its attachment at the ora ciliaris retinae or from the optic dis in association w/ retinal separation can be seen hanging from optic nerve or ora ciliarus retinae

Question 45

Hypertensive retinopathy

Answer 45

retinal vascular damage caused by systemic hypertension

Question 46

Progressive retinal atrophy (PRA)

Answer 46

series of inherited but rarely congenital progressive degenerative conditions affecting neurosensory retina or retinal pigmented epithelium Associated with progressively impaired vision and blindness

Question 47

Sudden acquired retinal degeneration syndrome (SARDS)

Answer 47

Syndrome of unknown etiology characterized by rapid death of photoreceptors causing sudden blindness in dogs Some dogs exhibit CS indicating Cushings - most do not test positive