Shadows above letters, milddouble vision

I have been seeing ghost images in both eyes since aroubd 3 weeks.The best way to describe it is seeing faint extra images coming from the top of whatever i am looking at, which is something lighter than its surroundings( like a street light at night or subtitles in movie). Imagine the letter “A” with a white font, on a screen on a black background, I would see faint copies of this letter above it.This happens with anything that is bright in darker background ( a black letter A in a white background would be fine). I observed that When i see through pinhole through a card, the double vision goes away. And while sleeping down and looking at a top angle from my glasses, the double vision goes away. Recently i got checked, and retina was checked and doc confirmed there is no problem, and squint was also ruled out. I was wearing spherical lenses with power -1.75, and doc gave 0.5 cylindrical power was needed, as per the test. The new glasses reduced a bit but still there. Please help?