Nothing to do with your eyes, unless your touching them with some medication your using.
does it also cause the eye to to swell up and become red. cause i drink about 3 bottles of water in the pass hour and when i went to use the bathroom i didnt feel that sting anymore. my pee was light yellow now its more clear.
yes, its a urinary infection and can be from having sex. Its either in the bladder or kidneys. It is more common in women and most men will get it at least once in their life, but not only from having sex. Fecis and urine are waste by products and contain bacteria.