10: Eye Conditions

Question 1

OD OS OU

Answer 1

Right, left, both eyes

Question 2

Conjunctivitis

Answer 2

Inflammation of conjunctiva
Redness
Swelling
Clear yellow or green discharge

Question 3

Conjunctivitis common in

Answer 3

Cats w upper respiratory infection (URI)

Question 4

KCS

Answer 4

Keratoconjunctivitis sicca (dry eye)

Question 5

KCS common in

Answer 5

Dogs. Esp cocker spaniels & bracheosephalic breeds

Question 6

Signs of KCS

Answer 6

Thick green ropy discharge
Scleral injection
Corneal edema
Conjunctivitis

Question 7

1 cause of KCS

Answer 7

Immune-mediated destruction of tear producing glandular tissue

Question 8

KCS is due to insufficient ______

Answer 8

Test production

Question 9

Corneal ulcer aka

Answer 9

Ulcerative keratitis

Question 10

Ulcerative keratitis common in

Answer 10

Cats w upper respiratory infections

Question 11

A corneal edema (cloudy looking) could indicate

Answer 11

KCS or ulcerative keratitis

Question 12

Signs of ulcerative keratitis

Answer 12

Blood vessels seen on cornea
Corneal edema
Photophobia (aversion to light)

Question 13

What is nuclear or lenticular sclerosis

Answer 13

Hardening/drying of the lens from center outward

Question 14

Nuclear/ lenticular sclerosis common in

Answer 14

Older dogs and cats

Question 15

Signs of nuclear lenticular sclerosis

Answer 15

Lens appears cloudy, hazy, bluish

Animal can still see

Question 16

Cataract
What it is
Common in…

Answer 16

Opacity of the lens (light does not pass through

Common in older dogs and cats. More so in dogs

Question 17

Signs of cataract

Can it be corrected ?

Answer 17

Lens appears white
Animal may be unable to see
Can be surgically corrected

Question 18

Glaucoma
What it is
What causes it

Answer 18

Increase in pressure within eye

Usually due to inability of fluid produced within the eye to drain normally

Question 19

Signs of glaucoma

Answer 19

May damage retina, eye may appear enlarged, color of cornea may Change

Question 20

Prolapse of the gland of the third eyelid, aka

Answer 20

Cherry Eye

Question 21

Cherry eye

What it is

Answer 21

Gland of third eyelid becomes enlarged, gland prolapses (protrudes), usually needs to be surgically removed

Question 22

Entropion

And signs

Answer 22

Eyelid turned inwards
Eyelashes and facial hair irritate cornea
Signs: ocular discharge, blinking and squinting due to photophobia

Question 23

Ectropion

Answer 23

Eyelid turned outward
May cause drying of eye but rarely causes a problem
Cosmetic issue for some owners

Question 24

Ectropion normal in

Answer 24

Hounds

Question 25

Exophthalmos

Common in

Answer 25

Abnormal protrusion of the eyeball.

Common in bracheosephalic breeds

Question 26

A non bracheosephalic breed with an exophthalmos May indicate problems such as

Answer 26

Tumor

Periodontal disease

Question 27

Proptosis

Common in

Answer 27

Displacement of eyeball from orbit

Common In bracheosephalic breeds

Question 28

Strabismus

Answer 28

Eyes not properly aligned

Question 29

Convergent strabismus

Answer 29

Both eyes pointed medically (cross eyed)

Question 30

Divergent strabismus

Answer 30

One eye pointed laterally

Question 31

Nystagmus

What this indicates

Answer 31

Side to side eye movements
Indicated brain problems like
Tumor
Injury
Inflammation

Occasionally happens after anesthesia

Question 32

Bracheosephalic breeds are dispositioned to what eye conditions and why

Answer 32

Exophthalmos and proptosis (orbit too small for globe)
Entropion (skin folds push lid into eye)
KCS (entropion leads lids to not close over eye)