Related Experiment Video
Updated: Dec 21, 2025

Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
[Ocular Syphilis - Update]
Thomas Rath1, Martin Scheel1, Matthias Kriegel2
1Rheumatologie, St. Franziskus-Hospital Münster.
Abstract:
Syphilis is a bacterial infectious disease transmitted by the spirochaete Treponema pallidum. The rate of infection has increased during the last decade. Ocular syphilis is an underestimated presentation of the disease, and it is increased in HIV-positive patients. Even though every part of the eye may be affected, syphilis most commonly occurs with posterior or panuveitis. A distinctive pattern is acute syphilitic placoid chorioretinitis, with typical features in multimodal imaging. If syphilis is suspected, specific and nonspecific Treponema pallidum serological diagnostic tests are mandatory. Clinical outcome, or morphology and vision are commonly improved if antibiotic therapy (penicillin is the drug of choice) is instituted early. Additional corticosteroids are carefully applied according to individual need, and should be initiated after the start of antibiotics.
Insights
Syphilis, a bacterial infection, is rising, particularly affecting the eyes in HIV-positive individuals. Early antibiotic treatment, like penicillin, is crucial for improving vision and outcomes in ocular syphilis.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Bacteriology
Background:
- Syphilis, caused by Treponema pallidum, is a bacterial infection with increasing incidence.
- Ocular syphilis is an underdiagnosed manifestation, with higher prevalence in HIV-positive patients.
- Posterior or panuveitis are common ocular presentations, alongside acute syphilitic placoid chorioretinitis.
Purpose of the Study:
- To highlight the rising incidence and diagnostic challenges of ocular syphilis.
- To emphasize the importance of early diagnosis and treatment for visual outcomes.
- To discuss the typical presentation and multimodal imaging features of acute syphilitic placoid chorioretinitis.
Main Methods:
- Review of clinical presentations and diagnostic methods for ocular syphilis.
- Analysis of serological diagnostic tests for Treponema pallidum.
- Evaluation of treatment outcomes with antibiotic therapy and corticosteroids.
Main Results:
- Ocular syphilis incidence is increasing, especially in HIV-positive populations.
- Specific and nonspecific serological tests are essential for diagnosis.
- Early antibiotic treatment, primarily penicillin, improves clinical outcomes, morphology, and vision.
Conclusions:
- Ocular syphilis requires high clinical suspicion due to its increasing prevalence.
- Prompt diagnosis via serological testing is critical.
- Timely antibiotic therapy, with judicious use of corticosteroids, leads to favorable visual prognoses.
Related Concept Videos
Sexually Transmitted Infections
Angle Closure Glaucoma: Treatment
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Glaucoma: Overview
Bacterial Phylum Spirochaetes
Bacterial Phylum Chlamydiae

