Ophtho terminology 3 Flashcards Preview

Question 1

1

Uvea

Answer

Iris, ciliary body, choroid
Vascular tunic of globe

Question 2

2

Uveitis

Answer

breakdown of blood ocular barrier (inflammation)

Question 3

3

Anterior uveitis

Answer

inflamed iris and ciliary body

Question 4

4

Posterior uveitis

Answer

inflammed choroid - likely chorioretinitis

Question 5

5

Panuveitis

Answer

inflammation of uvea: iris, ciliary body and choroid

Question 6

6

Endophthamitis

Answer

inflammation of all structures internal to fibrous tunic

Question 7

7

Fibrous tunic

Answer

cornea and slera

Question 8

8

Panophthalmitis

Answer

inflammation of all structures of the globe

Question 9

9

Aqueous flare

Answer

PATHOGNOMIC sign: anterior uveitis - proteins suspended in anterior chamber

Question 10

10

Keratic precipitates

Answer

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

Question 11

11

ciliary flush

Answer

360˚ deep corneal neovascularization

Question 12

12

Fibrin

Answer

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

Question 13

13

Hypopyon

Answer

PATHOGNOMIC sign: uveitis - wbc settles in anterior chamber

Question 14

14

miosis

Answer

constriction of the pupil

Question 15

15

Dyschoria

Answer

abnormally shaped iris - posterior synechia?

Question 16

16

Synechia

Answer

adhesion of the iris to the lens (posterior)
Adhesion of the iris to the cornea (anterior)

Question 17

17

Iris bombe

Answer

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

Question 18

18

Hyphema

Answer

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

Question 19

19

Hypotony

Answer

Decreased intraocular pressure
Consistent with anterior uveitis

Question 20

20

Cycloplegia

Answer

paralysis of ciliary body muscle - atropine
can relieve pain from spasms

Question 21

21

Nuclear sclerosis

Answer

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

Question 22

22

Cataract

Answer

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

Question 23

23

Parallax

Answer

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

Question 24

24

Lens zonules

Answer

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

Question 25

25

Intumsecent cataract

Answer

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

Question 26

26

Phacoemulsification

Answer

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

Question 27

27

Aldose reductase

Answer

enzyme that converts glucose to sorbitol - causes osmotic pulling effect

Question 28

28

Lens luxation

Answer

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

Question 29

29

Aphakic crestn

Answer

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

Question 30

30

Iridodonesis

Answer

movement of iris that occurs 2˚ to lens instability

Question 31

31

Phacodonesis

Answer

movement of lens 2˚ to lens instability

Question 32

32

Glaucoma

Answer

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

Question 33

33

Carbonic anhydrase

Answer

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

Question 34

34

Buphthalmos

Answer

enlargement of globe - glaucoma

Question 35

35

Haab's Stria

Answer

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

Question 36

36

Goniodysgenesis

Answer

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

Question 37

37

Gonioscopy

Answer

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

Question 38

38

Fundus

Answer

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

Question 39

39

Holangiotic vascular pattern

Answer

entire neurosensory retina gets blood

Question 40

40

Merangiotic vascular pattern

Answer

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

Question 41

41

Paurangiotic vascular pattern

Answer

neurosensory retinal vessels only near optic enerve
Equids

Question 42

42

Anangiotic vascular pattern

Answer

neurosensory retina is absent of any blood vessels

Question 43

43

Retinal detachment

Answer

separation of neurosensory retina from retinal pigment epithelium
Intraretinal breach

Question 44

44

Retinal dialysis

Answer

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

45

Hypertensive retinopathy

Answer

retinal vascular damage caused by systemic hypertension

Question 46

46

Progressive retinal atrophy (PRA)

Answer

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

47

Sudden acquired retinal degeneration syndrome (SARDS)

Answer

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

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