When you look into a really bright object, the bright shape you looked into is so bright that it covers up the vision of that pacticular place. So, whenever you look somewhere else, that same pattern...
well first of all if u r talking about after you fall to sleep its because after u close your eyes for about 5mins your eyes will begin to get bigger and after thay get really big then you open your...
You should probably get your retinas checked. Flashing lights in the vision occurring for longer than 20 minutes could be a sign that your retinas are detatching. The chance of this occurring is...