The eyes look at the light tears are mostly seen in the following cases: 1, bacterial conjunctivitis or viral conjunctivitis. More than bacterial conjunctivitis, usually accompanied by more yellow purulent secretions, it is recommended that every day with a sterile cotton swab dipped in saline will be wiped clean, and then topical antibiotic drops or eye ointment anti-inflammatory symptomatic treatment. Viral conjunctivitis requires topical drops of antiviral medication, and at the same time, attention should be paid to avoid sharing the same towel, etc., to prevent cross-infection; 2, iritis. This is an immune-related disease, mostly associated with staying up late, decreased resistance, the need for local application of ciliary muscle paralyzing agent and glucocorticoid therapy, serious cases can be combined with oral non-steroidal anti-inflammatory drug therapy; 3, inverted eyelashes. Eyelashes inverted to the cornea, repeated stimulation of the surface of the eye, causing corneal epithelium roughness or local defects, thus appearing to look at the light tears. Mild inverted eyelashes can be electric eyelash capsule, serious extensive inverted eyelashes need to do inverted eyelashes corrective surgery.