Overview
Secondary optic atrophy refers to the degeneration of optic nerve fibers following an initial insult, often associated with prolonged increased intracranial pressure (ICP) leading to papilledema, which may resolve but leave behind irreversible damage to the optic nerve 13.Diagnosis
Key Diagnostic Criteria: Optic disc swelling (papilledema) followed by atrophy, often with a history of elevated ICP 1.
Recommended Tests:
- Fluorescein angiography: Useful in differentiating papilledema from pseudopapilledema, showing high accuracy in pediatric cases 2.
- OCT (Optical Coherence Tomography): Combination protocols and multicolor confocal scanning laser ophthalmoscopy (Spectralis SD-OCT) provide high diagnostic accuracy 2.
Grading: Typically assessed clinically and through imaging modalities, with grading systems varying but often based on severity of disc swelling and subsequent atrophy 1.Management
First-Line Treatments:
- Addressing Underlying Cause: Reduction of ICP through surgical intervention (e.g., shunt placement) or medical management (e.g., diuretics) 13.
Adjunctive Treatments:
- Monitoring and Supportive Care: Regular ophthalmologic follow-up to monitor progression or resolution of optic atrophy 3.Special Populations
Pediatrics: Imaging methods like OCT and fluorescein angiography are crucial for accurate differentiation between papilledema and pseudopapilledema 2.
Comorbidities: Management in obese patients with cluster headaches requires thorough investigation and management of ICP to prevent irreversible optic nerve damage 3.Key Recommendations
Utilize advanced imaging techniques such as OCT and fluorescein angiography for accurate diagnosis of papilledema in pediatric patients (Evidence: Moderate) 2.
Prioritize treatment aimed at reducing intracranial pressure to prevent secondary optic atrophy (Evidence: Expert opinion) 13.
Regular ophthalmologic monitoring is essential in managing patients with resolved papilledema to assess for signs of optic atrophy progression (Evidence: Weak) 3.References
1 Zaman M, Micieli JA. The use of the term "choked disc" in medical literature: a review of case reports and cross-sectional studies across specialties. Canadian journal of ophthalmology. Journal canadien d'ophtalmologie 2026. link
2 Chang MY, Binenbaum G, Heidary G, Morrison DG, Galvin JA, Trivedi RH et al.. Imaging Methods for Differentiating Pediatric Papilledema from Pseudopapilledema: A Report by the American Academy of Ophthalmology. Ophthalmology 2020. link
3 Selby G, Hipwell GC. A case of spontaneously resolving "papilloedema". Proceedings of the Australian Association of Neurologists 1975. link