Vision and Vision Loss

Question 1

Answer 1

Retinal detachment

Question 2

Answer 2

Retinal detachment

Question 3

Answer 3

Retinal detachment

Question 4

Answer 4

Retinal detachment

Question 5

Answer 5

Retinal detachment

Question 6

Answer 6

Question 7

Presentation: Optic Neuritis

Answer 7

Abnormal PLR: mydriasis
Often bilateral
Presents just like blindness due to diffuse retinal disease - may be concurrent with retinal disease or retina may be normal

Question 8

Answer 8

Optic neuritis

Question 9

Answer 9

Optic neuritis

Question 10

Answer 10

Question 11

Blind OU/Normal
Fundus/Abnormal PLR (Mydriasis) dDxs

Answer 11

SARDS
Optic chiasm or optic tract disease (ERG can localize)

Question 12

Clinical Signs: SARDS

Answer 12

Sudden onset of blindness (day-weeks)
Fundus normal early in disease process
Cushing’s clinical signs

Question 13

Answer 13

SARDS

Question 14

How is SARDS diagnosed?

Answer 14

ERG = no retinal function = flat line

Question 15

What does an ERG look like with SARDS?

Answer 15

ERG would be normal with optic neuritis as the abnormality is the optic nerve

Question 16

Pathogenesis: Hypertensive Retinopathy

Answer 16

Question 17

Answer 17

Answer 18

Feline hypertensive retinopathy

Question 19

Answer 19

Feline hypertensive retinopathy

Question 20

Presentation: Hypertensive Retinopathy

Answer 20

Bilateral mydriasis and blindness
Concurrent renal disease
Up to 50% will regain vision if treated

Question 21

Answer 21

Normal fundus
dDX: SARDS
Dx: ERG

Question 22

Answer 22

Abnormal fundus
dDx: PRA
Dx: genetic testing