Stinging eyes may be related to eye diseases, such as conjunctivitis, keratitis, conjunctival foreign body, visual fatigue and other causes. For patients with eye fatigue, the eyes may show symptoms of congestion, discomfort when encountering bright light stimulation, it is recommended to use anti-fatigue eye drops to dot the eyes, and try to pay attention to the rest of the eyes. Conjunctivitis is usually characterized by conjunctival congestion, accompanied by increased secretion. If you experience bright light stimulation eyes appear obvious discomfort, it is best to go to the hospital ophthalmology clinic for review, to rule out the possibility of complication of keratitis. If there is a foreign body inside the eye or keratitis, photophobia and other symptoms of corneal irritation may also occur.