A 25 year old male gives history of sudden painless loss of vision in one eye for the past 2 weeks.There is no history of trauma.On examination the anterior segment is normal but there is no fundal glow.Which one of the following is the most likely cause?

• A. Developmental cataract.
• B. Acute attack of angle closure glaucoma.
• C. Vitreous haemorrhage.
• D. Optic atrophy.