Teary Eyes - Red eye - Burning.

I have sleep deprevation issue due to studies and my brain activity is high night so i tend to sleep at 2-3 am and i feel this has impact on my eyes.In the past my eyes has got red and a small white bubble has formed on iris with pain while blinking has occured and i have got rid of it with some medication...now a days when i wake up my eyes look red even though if sleep 8 hours .when i see sunlight,computer screen tears are produced and this condition and sometimes if i don't sleep well tears are produced whole day with some burning sensation.I have used eye drops but there was no much impact.What might be causing this issue.Can someone tell some remedy that can be done at home to cool my eyes although i will plan to visit a doctor soon but in the past many doctors were unable to give me proper reason for this condition.I have wasted a lot of money and everyone suggests me some eye drops rather than explaining the root cause and remedy.