I see light flashes in my right eye toward the outside of my right eye. I see these out doors in the dark or when entering a dark room inside my home. The flashes are like a comet, I see it and it is quickly gone. I have also noticed recently that I see a shadow, right eye, gray/ brown, thin like a fiber from clothing, especially when I look to the right. What is this? Do I need to see a doctor? I had my annual eye exam in December 2014. My eyes had not changed. Same correction for nearsighted. I am a 63 year old female.