MSRA-1750

A 75-year-old man presents to his GP with a decline in his vision. He describes a gradual onset of dark floaters in his vision over the past few months and has recently experienced some episodes of flashing lights when outside in bright sunlight. The patient has a history of hypertension, which is managed with 5mg ramipril daily. He has a smoking history of 45 pack-years, does not consume alcohol, and is able to perform his daily activities independently. What is the most probable diagnosis for this patient’s vision changes?