Related Experiment Video
Updated: Jun 9, 2026

12:23
Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients
Published on: April 14, 2014
Ocular perineuritis secondary to neurosyphilis
1Midwestern University, Arizona College of Optometry, Glendale, Arizona 85038, USA. KellyMeehanOD@gmail.com
Summary
This case report details a rare instance of syphilitic ocular perineuritis in an HIV-positive individual. Early diagnosis and treatment of neurosyphilis are crucial for managing this optic nerve sheath inflammation.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Neurology
Background:
- Syphilis, caused by Treponema pallidum, is known as "the great masquerader" due to its diverse clinical presentations.
- Ocular manifestations of syphilis are varied, affecting both anterior and posterior eye segments.
- Neurosyphilis, a serious complication, can present with subtle or dramatic neurological and visual symptoms.
Observation:
- A 33-year-old HIV-positive male presented with blurred vision, floaters, headaches, nausea, weight loss, and a scalp rash.
- Fundoscopy revealed bilateral disc edema, suggesting optic nerve involvement.
- The patient's symptoms and signs were indicative of neurosyphilis with ocular complications.
Findings:
- The patient was diagnosed with syphilitic ocular perineuritis, an inflammation of the optic nerve sheath.
- This condition presented as bilateral disc edema without elevated intracranial pressure.
- Syphilitic ocular perineuritis is an uncommon but significant complication of neurosyphilis.
Implications:
- Prompt diagnosis of neurosyphilis and its ocular complications is vital.
- Syphilitic ocular perineuritis can be mistaken for papilledema or papillitis, highlighting the need for thorough syphilitic workup.
- Early treatment with penicillin can effectively manage neurosyphilis and prevent vision loss.
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...
Multiple Sclerosis l: Introduction
Multiple sclerosis is a chronic autoimmune disease of the central nervous system (CNS) that affects the brain, spinal cord, and optic nerves. It is an inflammatory demyelinating disorder and a leading cause of neurological disability in young adults.EpidemiologyMS commonly begins between 20 and 40 years of age and is twice as common in women. Its exact cause remains unclear, but genetic susceptibility contributes, with higher risk in first-degree relatives and identical twins. A greater...
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...
Secondary Spinal Cord Injury llI: Pathophysiology
Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...
Encephalitis ll: Pathophysiology
Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
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...
