Sudden loss of vision

Question 1

common causes of a sudden painless loss of vision are as follows?

Answer 1

ischaemic/vascular -
occlusion of central retinal vein and occlusion of central retinal artery

vitreous haemorrhage

retinal detachment

retinal migraine

Question 2

X

Question 3

X

Question 4

C

Question 5

C

Question 6

C

Question 7

C

Question 8

Central retinal vein occlusion cause ?

Answer 8

Glaucoma , polycethmia, hypertension.

Question 9

C

Question 10

C

Question 11

Central retinal artery occlusion causes?

Answer 11

thromboembolism (from atherosclerosis) or arteritis (e.g. temporal arteritis)

Question 12

Central retinal artery occlusion features?

Answer 12

‘cherry red’ spot on a pale retina

afferent pupillary defect

Question 13

Vitreous hemorrhage causes?

Answer 13

causes: diabetes, bleeding disorders, anticoagulants

Question 14

Features of vitreous hemorrhage ?

Answer 14

sudden visual loss,
dark spots

Question 15

X

Question 16

X

Question 17

C

Question 18

C

Question 19

Posterior vitreous detachment features?

Answer 19

Flashes of light (photopsia) - in the peripheral field of vision

Floaters, often on the temporal side of the central vision

Question 20

C

Question 21

C

Question 22

Retinal detachment features

Answer 22

Dense shadow that starts peripherally progresses towards the central vision

A veil or curtain over the field of vision
Straight lines appear curved

Central visual loss