This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
A patient with detachment of retina with ph-otopsia with floaters in the eye. Diagnosis is 
Select and explain. 
A. Vitreous haemorrhage, B. Exudative retinal detachment, C. Rhegmetogenous retinal detachment, D. Tractiona retinal detachment
C: Rhegmetogenous retinal detachment
Answer: C: Rhegmetogenous retinal detachment 
Explanation: C i.e. Rhegmatogenous Retinal detachment Rhegmatogenous R.D. has photopsia, floaters Q and visual field defect (perceived by the patient as a black cuain). Tractional R.D. is usually asymptomatic (no photopsia & floaters) with slow and progressive loss of visual field. Exudative R.D. has no photopsia, but floaters are present occasionally with sudden and rapid loss of visual field.