My vision seems fine but I have headaches and strained eyes for days now whenever I read even just one paragraph and look at my phone/laptop. I'm also having a hard time adjusting from dark to bright places and my eyes are sensitive with lights.
Thanks for your Question
It seems you have dry eyes. Try to use lubrication eye drops use it 3-5 times a day. In case you feel no improvement within a week you should visit your eye doctor because you might need eyeglasses.