Related Experiment Video
Updated: Jul 13, 2026

10:33
Primed Mycobacterial Uveitis (PMU) as a Model for Post-Infectious Uveitis
Published on: December 17, 2021
Ocular uveitis as the initial presentation of syphilis.
May-Ching Hong1, Shwu-Jiuan Sheu, Tsung-Tien Wu
1Department of Ophthalmology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, ROC.
Journal of the Chinese Medical Association : JCMA
|July 17, 2007
Summary
Ocular syphilis can initially present as uveitis, often without systemic symptoms. Early diagnosis by ophthalmologists is crucial for effective treatment and vision recovery, even with penicillin allergies.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Uveitis
Background:
- Syphilis can manifest initially as ocular uveitis.
- Ophthalmologists are often the first to diagnose syphilitic patients.
- Understanding these initial presentations is key for early detection.
Observation:
- Retrospective review of uveitis patients diagnosed between 1992 and 2004.
- Included patients with positive serologic tests and active ocular syphilis.
- Eight patients (14 eyes) diagnosed with ocular syphilis by ophthalmologists.
Findings:
- Panuveitis was the most common diagnosis (78.6%), followed by anterior (14.3%) and posterior uveitis (7.1%).
- Bilateral eye involvement occurred in 75% of patients.
- Treponema pallidum confirmed via aqueous humor dark field and immunofluorescent tests.
- All patients showed improved visual function and uveitis after treatment with penicillin or tetracycline.
Implications:
- Ophthalmologists are crucial for early syphilis detection, as ocular symptoms may precede systemic manifestations.
- Prompt diagnosis and treatment of ocular syphilis yield positive visual prognoses.
- Awareness of diverse ocular syphilis presentations aids in early disease identification.
Related Concept Videos
Sexually Transmitted Infections
Sexually transmitted infections (STIs) are diseases transmitted primarily through unsafe sexual interactions. Bacteria, viruses, or parasites cause them and can result in severe health complications if untreated.ChlamydiaThe bacterium Chlamydia trachomatis is responsible for the disease Chlamydia, the most common STI in the United States. This peculiar pathogen requires human cells to reproduce, residing intracellularly. The initial infection often goes unnoticed because it typically does not...
Endocarditis II: Clinical Features of Infective Endocarditis
Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
Glaucoma: Overview
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
Open Angle Glaucoma: Treatment
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
Angle Closure Glaucoma: Treatment
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
Leishmaniasis
Leishmaniasis is a protozoal disease caused by species of the genus Leishmania and transmitted through the bite of infected female sandflies. The parasite exists in two principal morphological forms during its life cycle. A sandfly acquires intracellular amastigotes from an infected reservoir host, such as a dog. Within the sandfly, these forms differentiate into motile, flagellated promastigotes. During a subsequent blood meal, promastigotes are injected into the human host, where they...

