Syphilitic keratopathy

Syphilis is a chronic sexually transmitted disease (STD) caused by Treponema pallidum. It is mainly transmitted through sexual contact and can also be transmitted to the next generation through the placenta. Syphilis can invade many organs and tissues of the human body, such as the skin, mucous membranes, cardiovascular system, and nervous system. It mainly invades the skin and mucous membranes in the early stage, and mainly invades the cardiovascular and nervous system in the later stage. The eye can cause a variety of damage, such as conjunctivitis, keratitis, scleritis, uveitis, chorioretinitis, optic neuritis, strabismus, drooping of the eyelids, abnormal pupils, etc. Occasionally, the rigid limbus of the cornea, near the limbus bulbus Conjunctival gum swelling, orbital periostitis. The cornea is mainly manifested as syphilitic parenchymatous keratitis.