I feel that my vision seems blinking, I can see the whole view clearly but it seems blinking faster in Milli seconds(that's why there is no visual change) especially at my sides of eye, I feel more in left eye. Slight normal pain around eyes and around head at times. No floaters, No flashes. Between I've been using spectacles from age 6. At present my prescription was -9 left eye and -10 right eye, have cylindrical power. Can some one explain what's wrong with my eyes.