This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Ophthalmology
Sudden Painless loss of vision is seen in 
Select and explain. 
A. Vitreous haemorrhage, B. Optic atrophy, C. Developmental cataract, D. Acute Angle closure glaucoma
A: Vitreous haemorrhage
Answer: A: Vitreous haemorrhage 
Explanation: (A) Vitreous hemorrhage # Clinical features of vitreous haemorrhage:> Sudden development of floaters occurs when the vitreous haemorrhage is small.> In massive vitreous haemorrhage patient develops sudden painless loss of vision.> Fate of vitreous haemorrhage> Complete absorption> Organization> Complications like vitreous liquefaction, degeneration and khakhi cell glaucoma (in aphakia) may occur.> Retinitis proliferans> Treatment: Conservative treatment Treatment of the cause Vitrectomy> Sudden loss of vision: Central retinal artery occlusion Retinal detachment Central retinal vein occlusion Retrobulbar neuritis> Transient loss of vision: Carotid artery disease Migraine Papilloedema, Severe hypertension