Vitreous Conditions - Posterior vitreous detachment, Vitreous hemorrhage

Question 1

Vitreous hemorrhage
-pathophysiology
-risk factors
-presentation
-investigations
-management

Answer 1

MOST COMMON CAUSE OF SUDDEN PAINLESS VISION LOSS
-proliferative diabetic retinopathy
-posterior vitreous detachment
-ocular trauma

Acute/subacute onset
-painless visual loss
-red hue
-floaters, shadows

Dilated fundoscopy - hemorrhage
Slit lamp - blood in vitreous humour
Fluorescein angio - find neovascularisation

Conservative - self limiting
Treat underlying cause

Question 2

Posterior vitreous detachment
-pathophysiology
-risk factors
-presentation
-investigations
-management

Answer 2

Separation of vitreous humor from retina
-age
-near sighted

Sudden floaters, flashes, cobwebs
Blurred vision

Opthalmologist review within 24hrs

Self limiting - improves over 6 months
Repair associated retinal tears

Question 3

Retinal detachment
-pathophysiology
-risk factors
-presentation
-investigations
-management

Answer 3

Retinal tissue separates from choroid layer
-DM
-shortsighted
-age
-past cateract surgery
-eye trauma

Floaters, flashers
Sudden onset painless, progressive visual field loss - curtainlike, peripheries to center
RAPD if optic nerve involved
Red reflex lost, retinal folds

Reversible if caught early
Surgery
-scleral buckle