11 - diseases of the vitreous and the fundus

Question 1

(vitreous)

1. composed mostly of what?

Answer 1

1. 98% water (collagen for structure)

Question 2

(fundus)

1. outermost layer = ?
2. middle layer = ?

special reflective layer = ?

3. innermost layer = ?

Answer 2

1. sclera (fibrous protective layer)
2. choroid (very vascular)
3. retina (neurosensory)

Question 3

(fundus - congenital anomalies)

1. what breed gets choroidal hypoplasia lateral to the optic disc?

Answer 3

1. collies

Question 4

(fundus - congenital anomalies)

(retinal dysplasia)

1. what is it?
2. 3 categories?

Answer 4

1. abnormal development of the retina
2. multifocal, geographic, total

(vary in severity from lesions that have no effect on vision to blindness)

Question 5

(fundus - congenital anomalies)

1. what retinal condition is inhertied?

Answer 5

1. progressive retinal atrophy (PRA)

(bilateral and progressive)

Question 6

(fundus - congenital anomalies)

(acquired noninherited abnormalities)

1. What is SARDs?
2. signalment?
3. history?
4. treatment?

Answer 6

1. sudden acquired retinal degeneration
2. overweight, middle-aged female dogs, usually smaller breeds
3. sudden onset of vision loss
4. none

Question 7

(fundus - congenital anomalies)

(acquired noninherited abnormalities)

1. what is FCRD?
2. due to lack of what in diet?

Answer 7

1. feline central retinal degeneration
2. taurine

Question 8

(fundus - congenital anomalies)

(acquired noninherited abnormalities)

(retinitis-chorioretinitis)

1. this exists!

Question 9

(fundus - congenital anomalies)

(acquired noninherited abnormalities)

Question 10

(fundus - congenital anomalies)

(acquired noninherited abnormalities)

(retinal detachment or separation)

1. separation of what from what?

Answer 10

1. neural retina from retinal pigment epithelium (RPE)