I've got the same problem. People actually have asked (on numerous occassions) if I'm high. There are a couple of different reasons you could be experiencing this, and things you can do to prevent it, but for the sake of brievety I'll just go through the most common remedies.
Firstly, buy or have prescribed to you a good antihistamine eye drop. You may have a mild case of allergic conjunctivitis. Also, you should go to the store and buy some vitamin A supplements (not beta-carotene). This is going to take 6-12 weeks before you see a large response, but nothing in life comes quickly, as you know... Perhaps some fish oil vitamin A (about 50,000 IU for 4 weeks, then 25,000 IU after). You might also want to try out some vitamin C, as it's a great healer. 1,000mg twice a day should do you well.
Oh, and take a break from looking at the computer so often. Natural sunlight is best - look out that window when you aren't huddled over the screen doing your moderator thing.
