Miguel Cruz-Pimentel, Thomas Wright, Kenneth T Eng, Brian G Ballios
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Unilateral maculopathy associated with autosomal dominant bestrophinopathy.
Purpose: To describe the presentation of Best Vitelliform Macular Dystrophy (BVMD) as a unilateral maculopathy with bilateral retinal pigment epithelium (RPE) reduced function secondary to molecular changes or variants in BEST1 gene.
Methods: Retrospective case series.
Results: Both patients exhibited unilateral anatomical changes during fundus examination caused by pathogenic variants in BEST1. These changes were also evident in fundus autofluorescence (FAF) and optical coherence tomography (OCT) images. However, both patients displayed evidence of global RPE dysfunction, which was confirmed by a reduced light peak-to-dark trough amplitude ratio (LP: DT ratio) on the electrooculogram (EOG).
Conclusion: Autosomal dominant variants in the BEST1 gene can manifest as unilateral disease. In such cases, it is important to conduct genetic testing promptly to confirm the presence of bestrophinopathy. When counseling the patient, it is essential to discuss the potential for future anatomical involvement in the unaffected eye.
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Ophthalmic Genetics accepts original papers, review articles and short communications on the clinical and molecular genetic aspects of ocular diseases.
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