My Painful Right Eye

I woke up this morning with a painful eye. My right eye is one having problem. Actually I experienced it before when I sleep late around 1 at midnight. It really hurts especially if am going to blink it. But I've noticed that if I'll sleep early I won't experience such this pain. I think I have to visit an optometrist and have my eye check. I can't really take it anymore. Hohoho! It hurts.