Interstitial keratitis in Tertiary Syphilis Interstitial keratitis, which is an inflammation of the cornea’s connective tissue elements, and usually affects both eyes, can occur as a complication brought on by congenital, or acquired syphilis. IK usually occurs in children older than two years of age. Without treatment, an infected person still has syphilis even though there are no signs or symptoms. It remains in the body, and it may begin to damage the internal organs, including the brain, nerves, eyes, heart, blood vessels, liver, bones, and joints. #Interstitial #keratitis #Tertiary #syphilis #clinical #photo