The eyes see bright light pain and tearing, in clinical often seen in the following cases: First, electrophotographic uveitis, usually caused by ultraviolet radiation or welding stimulation, corneal epithelial tissue due to ultraviolet light or bright light stimulation resulting in specific inflammatory response, treatment is mainly hormonal anti-inflammatory therapy, eye local can be given corneal epithelial repair agent to promote epithelial damage healing. Second, it may be uveitis, uveitis is an immune inflammatory reaction of the uveal tissue of the eye, which can appear as eye redness, photophobia, tearing and other symptoms, treatment should be shaded, followed by hormonal anti-inflammatory therapy as well as atropine for ciliary muscle paralysis, relaxation of the ciliary muscle and promotion of inflammation absorption. Thirdly, patients with severe visual fatigue can also have symptoms of eye pain and tearing when they see bright light. Visual fatigue is due to the overworked state of the ciliary muscle and extraocular muscles, when encountering bright light the ciliary muscle will contract and make the pupil smaller, there will be soreness and pain of the ciliary muscle with the irritating symptoms of tearing. Fourth, the conjunctival sac of the eye enters a foreign body or there is an impingement, conjunctival stones local irritation produced.