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X-shaped macular dystrophy with flavimaculatus flecks.

B Puech¹, J C Hache, P Turut

¹Hôpital Régional de Lille, France.

Ophthalmologica. Journal International D'Ophtalmologie. International Journal of Ophthalmology. Zeitschrift Fur Augenheilkunde

|January 1, 1989

Summary

This study identifies a rare retinal pigment epithelial dystrophy with distinctive X-shaped macular lesions and retinal flecks. The condition exhibits dominant inheritance and progresses slowly over decades, minimally impacting vision initially.

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Area of Science:

Ophthalmology
Medical Genetics

Background:

Retinal pigment epithelial dystrophies are a group of inherited disorders affecting the RPE.
Understanding their genetic basis and clinical manifestations is crucial for diagnosis and management.

Observation:

Two families presented with a novel retinal dystrophy.
Key features included bilateral X-shaped yellowish macular lesions and numerous flavimaculatus retinal flecks.

Findings:

The condition demonstrated autosomal dominant inheritance, affecting nine members across generations.
Onset occurred in middle age with slow progression, with visual functions minimally disturbed for 2-3 decades.
Retinal flecks increased in number and size over time, while electroretinography (ERG), electrooculography (EOG), and color vision remained normal initially, altering slowly.

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Implications:

This distinct clinical presentation suggests a specific genetic etiology for this RPE dystrophy.
Further research can elucidate the underlying molecular mechanisms and inform genetic counseling for affected families.