I look at a computer screen 8 hours a day at work, drive an hour home, and look at a screen another four to five hours. This past week, I had a weird experienc

I look at a computer screen 8 hours a day at work, drive an hour home, and look at a screen another four to five hours. This past week, I had a weird experience where there was a white spot in my vision that prevented me from being able to read. Any particular letter or number I focused on couldn't been seen. It only lasted for about fifteen minutes but left me with a headache that lasted a couple of hours. According to my eye-doctor, it was probably an ocular migraine.