A 68-year-old man presents with sudden decrease in vision in his right eye. He describes seeing floating specks in his vision and occasional flashes of light. He has a history of hypertension and cataract surgery in both eyes. On examination, his visual acuity is 6/12 in the right eye and the fundoscopy is normal. What is the most likely cause of his symptoms?

A. Posterior vitreous detachment (PVD)

B. Retinal detachment

C. Retinal vein occlusion

D. Macular degeneration

E. Optic nerve damage

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