QuestionSBA
QuestionChoice
This can cause sudden onset flashers and floaters, but would not cause complete visual loss unless it progressed to retinal detachment.
10028345
e
Posterior vitreous detachment
QuestionChoice
Whilst this could cause an absent red reflex, it would be unlikely to present with sudden onset visual loss but rather progressive blurring of vision over time.
10028342
b
Right sided cataract
QuestionChoice
This is more commonly seen in children and would be characteristically causes leukocoria (white reflex instead of red) instead of an absent red reflex.
10028343
c
Retinoblastoma
QuestionChoice
In a patient with poorly controlled diabetes and sudden, painless visual loss, vitreous haemorrhage is a key differential. The classic sign on examination is an absent red reflex on the affected side.
10028341
a
Vitreous haemorrhage
QuestionChoice
Whilst his can cause visual difficulties if untreated, it would be painful and likely take a longer time to develop. Corneal scarring may cause a reduced or absent red reflex.
10028344
d
Corneal ulcer
Concept
Chapter
2693
6053
Sudden painless visual loss
Topic
140
Ophthalmology
18066
Vitreous haemorrhage often presents with sudden, painless vision loss and an absent red reflex, particularly in poorly controlled diabetic patients.
A 57-year-old diabetic patient has sudden loss of vision in their right eye

They deny any pain or a history of trauma to the eye.

They are poorly compliant with their diabetic medication and have not attended their scheduled eye checks.

At the start of ophthalmic examination, they are noted to have an absent red reflex on the right-hand side.

What is the most likely diagnosis?
a