Ketorolac is in a group of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs). Ketorolac works by reducing hormones that cause inflammation and pain in the body. Ketorolac ophthalmic (for the eye) is used to relieve eye itching caused by seasonal allergies. Ketorolac ophthalmic is also used to reduce swelling, pain, and burning or stinging after cataract surgery or corneal refractive surgery. Ketorolac ophthalmic may also be used for other purposes not listed in this medication guide.