What happened when one of my eyes suddenly swelled up?

Sudden swelling and pain in one eye should be considered to be caused by granuloma, keratitis and other reasons.
1. granuloma: the eyelid inside the blepharoplasty, eyelash follicles and other infections caused by the treatment can be through the local hot compresses as well as coated with ofloxacin eye ointment, erythromycin ophthalmic ointment and other antibiotic eye ointment treatment to eliminate the inflammation, if necessary, need for surgical treatment.
2. Keratitis: caused by infection in the black eye part of the eye, according to the different pathogens of infection need to take corresponding anti-infection treatment, such as using ofloxacin eye drops, norfloxacin eye drops, etc. to treat bacterial infectious keratitis, using ganciclovir eye drops, acyclovir eye drops, etc. to treat viral infectious keratitis.
If you have a sudden swelling and pain in one eye, you should go to the ophthalmology department of the hospital in time, and the doctor will find out the specific cause and then carry out targeted treatment.