Visual field defects

Question 1

Lesion of the optic nerve

Answer 1

Ipsilateral mononuclear visual loss

Question 2

Lesion of the optic chiasm

Answer 2

Bitemporal hemianopia

Question 3

Lesion at the optic tract

Answer 3

Contralateral homonymous hemianopia

Question 4

Lesion at ocipital cortex

Answer 4

Contralateral homonymous hemianopia w/ macular sparing

Question 5

Causes of sudden painless loss of vision

Answer 5

GCA - ischaemic optic neuropathy 
Retinal vein occlusion 
Retinal artery occlusion 
Vitreous haemorrhage 
Retinal detachment