I have vision problem

I have a vision problem. I get vision problem every 3rd day without playing computer. If I use computer more than 2 hours, I get vision problem at 11am until bedtime. If I use computer 2 hours or less, I get vision problem at 1pm if I go out at 12pm. If I don't go out, I get vision problem at 5pm. I am currently taking schizophrenia drugs fanapt (12mg) and seroquel (75mg). I visit my family doctor and she gave me cromolyn. I use it and the 3rd without computer that I usually have vision problem disappear. But I get vision problem on 2nd day at 12:20pm. And furthermore, I still get vision problem after using computer. I also visit my ophthamaloigist, and he told me to use sytane ultra, he also gave me pataday. I use both pataday and systane ultra and get vision problem on 2nd day at 5:20pm.