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Partial laser ablation of massive peripapillary subretinal neovascularization
C J Flaxel1, A C Bird, A M Hamilton
1Moorfields Eye Hospital, London, England.
Ophthalmology
|August 1, 1996
Summary
Massive peripapillary subretinal neovascular membranes (MPSRNs) may stabilize with partial laser treatment, unlike smaller PSRNs. Untreated lesions and those treated incompletely can still progress, threatening vision.
Area of Science:
- Ophthalmology
- Retinal Diseases
- Neovascularization
Background:
- Peripapillary subretinal neovascular membranes (PSRNs), especially massive ones (MPSRNs) ≥3.5 disc areas, are rare but can cause significant vision loss.
- MPSRNs often grow slowly and unpredictably, potentially threatening central vision as they extend towards the macula.
- Optimal treatment for MPSRNs remains debated, with variable success reported for complete laser ablation.
Observation:
- A review of 12 eyes with MPSRNs was conducted.
- Ten eyes underwent partial laser treatment to the temporal aspect of the neovascular complex; two eyes received no treatment.
- The clinical course and visual outcomes were analyzed for all 12 eyes.
Findings:
- Partial laser treatment led to stabilization of visual acuity in six of ten eyes.
- Four eyes treated with partial laser experienced progression of the neovascular membrane, resulting in severe vision loss.
- Both untreated eyes showed progression of the subretinal neovascular membrane, leading to loss of central vision.
Implications:
- Partial laser treatment may be a viable option for stabilizing MPSRNs, offering an alternative to complete ablation.
- Both treated and untreated MPSRNs require careful monitoring due to the risk of progression towards the macula.
- Further research is needed to establish definitive treatment guidelines for MPSRNs to prevent irreversible vision loss.