Special Senses

Question 1

What is the name of this condition and what is it?

Answer 1

Chalazion which is granulomatous inflammation directed against the meibomian gland.

Question 2

What are 3 components of corneal edema?

Answer 2

1. Injury to epithelium
2. Injury to endothelium
3. Keratitis

Question 3

What is happening to this eye?

Answer 3

diffuse corneal edema

the cornea is not transparent and you cannot see the iris .

Question 4

What is corneal edema called if it is because of ENDOthelial injury?

Answer 4

Corneal Endothelial dystrophy

can be inheritied , old age change, it is bilaterally symmetrical to diffuse opacity, degenreation of unknow cause

Question 5

What is a virus that causes diffuse corneal edema?

Answer 5

Canine Adenovirus 1

Question 6

What is going on with this dog? What is it a disease of?

Answer 6

Cataracts, most common disease of the lens, seen in response to injury of the lens. Opacity is just in the lens you can still see the iris .

Swelling and degeneration of lenticular fibers-> opacity.

Question 7

What is retinal detachment?

Answer 7

Seperation between the neural and pigmented layers

Question 8

Two types of retinal detachment?

Answer 8

1. Exudative- exudate accumulates in retinal space. Hemorrhage, neoplasm, choroiditis, retinitis
2. Tractional fibrous adhesions between cilary bodies . Cyclitic membrane usually due to inflammation

Question 9

What is going on in this picture?

Answer 9

Glaucoma -IOP

Question 10

What is primary glaucoma?

Answer 10

Goniodysgenesis- malformation of trabecular meshwork , inheritied in dogs

Question 11

Causes of secondary glaucoma?

Answer 11

Anything that obstructs the pupil or trabecular network, inflammation , lens, luxation. posterior synechia, peripheral anterior syncheia

Question 12

What is posterior synechia?

Answer 12

When the iris sticks to the lens

Question 13

What is peripheral anterior synechia?

Answer 13

Iris sticks to cornea

Question 14

What is this condition ?

Answer 14

Chemosis which is severe conjunctival edema

-hyperemia, swelling, edema, discharge

Question 15

True or False: Hyperemia indicates conjunctivitis?

Answer 15

False not alone it doesnt

Question 16

3 causes of conjunctivitis in cats?

Answer 16

Herpes, Chlamydia, mycoplasma felis

Question 17

What is the name of this condition ? What breed is most susceptible ?

Answer 17

Nodular granulomatous episcleritis, collies

Immune mediated pahtogenesis

Question 18

What is going on with this eye? What caused this to happen?

Answer 18

descemetocele due to proliferation of cornea and desments membraine coming through. Fungal infection in corneal stroma

Question 19

This is corneal proliferation, however 3 things are happening to this eye what are they?

Answer 19

staphyloma

neovascularization

corneal edema

Question 20

Drying and desiccating keratitis is?

Answer 20

Keratoconjnctivitis Sicca- dry eye

Question 21

German shepards are prone to this type of keratitis?

Answer 21

Pannus - chronic superficial keratitis only involves cornea

Question 22

Cause of bacterial keratitis in cows?

Answer 22

Moraxella Bovis

Question 23

What is going on with this cat?

Answer 23

Corneal endothelial dystrophy

Question 24

What is wrong with this eye and what species is this normally seen in?

Answer 24

Corneal sequestrum which is seen in cats from an area of necrosis

Question 25

Anterior uveitis?

Answer 25

iris and ciliary body

Question 26

Posterior Uveitis?

Answer 26

Chroid

Question 27

Chrioretinitis?

Answer 27

Chroid and retina

Question 28

Endopthalmitis

Answer 28

uvea , retina, vitreous

Question 29

Panopthalmitis

Answer 29

cornea and sclera?

Question 30

Mdx is ulcerative keratitis and hypopyon which portion of the eye is effected?

Answer 30

Exudate is settling in the anterior chamber so anterior uveitis

Question 31

Iris Bombe in a cat?

Answer 31

Pressure at the back of the eye pushes the iris forward

Question 32

What does the term hyphema mean?

Answer 32

Blood in the anterior chamber - uvea or retina can result in glaucoma

Question 33

What is the name of this condition and what is the etiology?

Answer 33

Cyclopia . synopthalmus Incomplete separation of orbits during angiogenesis Ingestion of veratum californicum on day 14 of gestation

Question 34

Name of this condition and etiology in a CALF not Cat :)

Answer 34

Microphthalmia and et BVD

Question 35

Define Ankyloblephraon

Answer 35

adhesion of the ciliary edges of the eye together

Question 36

Distichia

Answer 36

Eyelash arising from abnormal location on the eyelid or grows in an abrnormal direction

Question 37

Coloboma

Answer 37

notch like defects of the optic disc, retina and uvea as a result of defective closure of the embyonic fissure of the eye. Collie eye anomaly

Question 38

What type of neoplasia is this ? Benign or Malignant? Glaucoma? Metasitis high or Low?

Answer 38

Feline diffuse iris melanoma malignant low metastisis yes to glaucoma

Question 39

What is the most common metastasis involving the eyes of cats?

Answer 39

Uveal lymphoma

Question 40

Intraocular sarcomas are unique to what speices?

Answer 40

Cats, cows, common after trauma, malignant, optic nerve

Question 41

What can cause corneal pigmentation in cats?

Answer 41

Porphyrins from tear film response to injury- keatitis derived from uvea- staphyloma

Question 42

Indications of retinal degeneration and atrophy?

Answer 42

Decreased vascularity Optic disc atrophy Changes in tapetal reflection

Question 43

Causes of retinal atrophy and degeneration?

Answer 43

senile change inherited metabolic defect of photoreceptors, toxicity, metabolic ,increased IOP, retinal detachment

Question 44

Blepharitis

Answer 44

Inflammation of the eyelids

Question 45

Causes of uveitis in horse and cat due to hypersensitivity?

Answer 45

Feline idiopathic lymphoplasmacytic uveitis Equine recurrent uveitis

Question 46

Retinal lesions are usually caused from?

Answer 46

Optic nerve hypolasia missing optic nerve

Question 47

Otitis interna consequences?

Answer 47

Meningitis Vestibular disease Sensory hair cell loss- hearing impairment

Question 48

Stye

Answer 48

common name for bacterial infection of hair follicle or meibomian gland

Question 49

Retinitis

Answer 49

usually an extension from chroiditis o encephalitis, neurotropic viral infections, visceral larval migrans,