One may observe floaters, black spots, reduced central vision, diffuse haziness, drop in low contrast vision, wavy vision or flashes of light. These floaters might settle and appear sporadically. However, flashes of light occur occasionally for few days to weeks. One must consult a retina specialist in case of these symptoms. Eye check-ups at the best eye hospitals regularly conduct retinal examination by dilating the pupils and examining the health of your retina.