From past 20 days I feel like im having double vision. I see secondary image of the letters above the original letter's on the tv. Especially if the letter is white with black background. I went to see the doctor and he gave aphcon A eye drops. Drops reduce this for about 15 mins and then again I start having the problem. I wear corrective glasses (-2.75 on left eye and 1.75 on the right eye).