I am an artist and have been working long hours on a painting. Yesterday, towards the end of the day, after painting for maybe 6 hours, my close up vision was completely blurry but if I closed one eye, I could see fine. It was the same with both eyes. this morning my vision was normal. Today, after working a shorter time (4 hrs) the same thing happened. I am writing this now with one eye closed. I should add that the room that I paint in has fluorescent lighting, the paint is water based, I have a history of migraines, and am the only medication I take is Adderall. Thanks.