I have been suffering from dry eye and computer vision syndrome for the past month. I also have developed a few floaters, 4-5 in right eye and 1-2 in left eye. I'm ALOs myopic for -2 and -2.25 in left and right eye respectively. Now the doctor has asked me to ignore floaters unless I see lightning streaks or flashing in my vision. But unfortunately I don't really understand what is it and exactly how I will recognise it if it happens. Kindly help me understand how to understand what flashing is and what is it like to experience so I'm aware.