Hello, I am a 53 year old male. Recently I noticed that after blinking my left eye, I see a light purple crescent shape just above whatever I am looking at. I only see this when looking at light colored fields, like a white computer screen or the sky. I only see the crescent for a second, or less, after blinking.
I have had minor symptoms of vitreal detachment for several years and my near and far vision in my left eye has deteriorated a lot. I seem to need new glasses at least once a year. I am making an appointment with my opthamologist tomorrow, but I would appreciate any opinion.