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Bilateral slowly progressive big blind spot syndrome
1Department of Ophthalmology, School of Medicine, Kitasato University, Kanagawa, Japan.
Journal of Clinical Neuro-Ophthalmology
|September 1, 1989
Summary
Enlarged blind spots in both eyes, without optic disc swelling, may indicate progressive peripapillary retinal degeneration. This condition can lead to vision difficulties and is diagnosed through detailed retinal examination and imaging.
Area of Science:
- Ophthalmology
- Retinal Diseases
- Visual Field Testing
Background:
- Bilateral blind spot enlargement without optic disc edema is an uncommon presentation.
- Early detection of visual field abnormalities is crucial for timely intervention.
Observation:
- A 33-year-old woman presented with bilateral blind spot enlargement and subtle peripapillary retinal changes.
- Over four years, blind spots progressively enlarged, accompanied by difficulty with dark adaptation and distinct peripapillary retinal pigmentary degeneration.
Findings:
- Fluorescein angiography initially showed minimal hyperfluorescence, later revealing significant hyperfluorescence due to window defects in the degenerated areas.
- The clinical course suggests a link between enlarged blind spots and evolving peripapillary retinal degeneration.
Implications:
- Peripapillary retinal degeneration can manifest initially as enlarged blind spots without optic disc edema.
- This case highlights the importance of long-term follow-up for patients with unexplained visual field defects.
- Understanding this association aids in diagnosing and managing retinal degenerative conditions.