Hello, I keep seeing bright colored spots in my vision. I thought they were real like on my screen or on my hands but realized they don't rub away. More worryingly, last night I took off my glasses to head to bed and my left eye (-12.5 with astigmatism) felt blind compared to my right eye (-12.00). I could not make out the shape of anything with my left eye. I occasionally have slow showers of my floaters. Should I be concerned. Thank you Nasima