me eyes get red and itchy when i'm tired...

Often when you are doing things that make your eyes tired, you forget to blink them, they dry out, and they itch. I get that problem a lot because I use the computer a lot. They say that that is almost the worst thing, because you do tend to blink fewer times per minute. If you use the computer, or read a lot, you should take a break, close your eyes, focus further away like across the room. Look for an eyedrop that is a natural tear replacement, and that will feel better. You could also have allergies.

My husband has problems with one eye sometimes from being on the computer too long. The eye doctor said it is because he doesn't blink enough when focusing. They suggested he use Systane eye drops (you can get these anywhere). They hydrate the eye without all of the chemicals that Visine has and they help the eye to make more natural tears.