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Macular star associated with posterior hyaloid detachment
1Department of Ophthalmology, Kushimoto Rehabilitation Center, Wakayama, Japan.
Acta Ophthalmologica Scandinavica
|June 13, 2001
Summary
Vitreous traction during posterior hyaloid detachment can cause Leber's idiopathic stellate neuroretinitis-like lesions in adults. This case highlights optic disc vascular damage as a potential cause.
Area of Science:
- Ophthalmology
- Retinal Diseases
Background:
- Leber's idiopathic stellate neuroretinitis (LISN) is a rare condition characterized by optic disc edema and a macular star.
- The exact etiology of LISN remains unclear, with various factors proposed.
Observation:
- A 49-year-old woman presented with symptoms suggestive of LISN, including segmental optic disc edema, peripapillary retinal detachment, and a macular star.
- Ophthalmoscopic examination revealed an incomplete posterior hyaloid detachment with the posterior hyaloid membrane attached to the optic disc's nasal margin.
Findings:
- Fluorescein angiography demonstrated a bent retinal artery at the optic disc's upper margin.
- Evidence of fluorescein leakage from this area indicated vascular damage.
Implications:
- This case suggests that vitreous traction, secondary to posterior hyaloid detachment, can induce vascular damage at the optic disc.
- This mechanism should be considered in the differential diagnosis of adult patients presenting with fundus lesions resembling LISN.