Have sinus issue (head/ear pressure, congestion) but my eyes now see this mutilcolored specks of light in corner. Esp when sun is around. Ideas?

Perhaps your eyes. are hypersensitive because of continued intracranial pressure from the sinus? i'm not sure but it is possible to have increased orbital pressure and therefore hypersensitivity to bright light/ loud noise, kind of like when you have a migraine headache. I am not an ophthalmologist so I cannot give you the physiological changes associated with how the eye receives sunlight.