7.Styes
They can make your eye teary, but the other symptoms are usually more obvious, like a swollen, red, painful lump along the edge of your eyelid. Bacteria are the cause, and a stye will probably go away on its own in a few days. In the meantime, leave it alone and don’t try to pop it like a pimple — you’ll spread the infection. A warm washcloth on your eye may ease the pain.
8.Eyelash Problems
Ever had an eyebrow hair that stubbornly grows in at a weird angle? The same thing can happen with your eyelashes. If they grow in instead of out, they rub against the eye. It’s called trichiasis, and it can happen after infections, injuries, or other problems. To get relief from the discomfort and excess tears, your doctor might remove the eyelash or redirect it so it points in the right direction.