Can excess computer use cause cross eye or anything related to strabismus?
No, strabismus is misaligned eyes, meaning your eyes do not follow each other or look in opposite directions. It a an eye defect usually diagnosed in early childhood. You appear to have temporary eye strain which can definitely be caused by excessive computer use. Some of the symptoms of eye strain are blurry vision, red eyes and headaches. If you cut back on your computer use or give it up for a day or, your eye problem should clear up. If you haven’t had a comprehensive eye exam in or 2 or 3 years, you should make an appointment with an ophthalmologist or optometrist for the exam. Everyone should have a comprehensive dilated eye exam every few years. Most of us don’t see an Ophthalmologist or optometrist until we have a real problem, which might have been prevented or minimized if we had regular exams.