10 Symptoms of Syphilis

8. Blindness

The third stage of syphilis infection typically comes after a lengthy period of dormancy. Late-stage syphilis is typically referred to as tertiary syphilis and tends to have more pronounced symptoms than in the past. Blindness and reduced visual acuity are both common symptoms of tertiary syphilis, though the fact that syphilis can remain dormant for up to thirty years causes some individuals to assume that their failing eyesight is a result of age. Even with that said, blindness is a common symptom of tertiary-stage syphilis and can be vital in the diagnosis of an infection.