Sexual life is generally not directly harmful to the eyes. Normal and regular sex life between husband and wife, help to increase the emotional exchange between husband and wife, can release sexual pressure, but also the behavior of reproduction, normal sex life on the eyes generally no direct harm. If frequent excessive sex, or have unclean sex, may cause genitourinary infections as well as sexually transmitted diseases. Sexually transmitted diseases may be infected with pathogenic bacteria to the conjunctiva of the eye caused by eye diseases, such as Neisseria gonorrhoeae infection, caused by gonorrhea conjunctivitis, may cause conjunctival congestion, edema and pus, increased secretion, physical examination will find that the cornea is cloudy, and in severe cases, will result in ulcers, or even perforation and blindness. If there are abnormal symptoms in the eyes, it is recommended to go to the hospital in time to clarify the cause of the disease and follow the doctor’s instructions for treatment.