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CRB1 related retinal degeneration with novel mutation
Benjamin K Ghiam1, Edward H Wood2, Aristomenis Thanos3
1Oakland University, William Beaumont School of Medicine, 586 Pioneer Dr, Rochester, MI, 48309, USA.
American Journal of Ophthalmology Case Reports
|April 24, 2020
Summary
A novel CRB1 gene mutation was identified in a patient with retinal dystrophy, potentially impacting cystoid macular edema (CME) treatment response. This finding enhances understanding of CRB1-related eye diseases.
Area of Science:
- Ophthalmology
- Genetics
- Medical Research
Background:
- CRB1 gene mutations are associated with retinal degenerative diseases.
- Understanding genotype-phenotype correlations is crucial for managing these conditions.
- Cystoid macular edema (CME) is a common complication, often responsive to therapy.
Observation:
- A patient with progressive vision loss underwent comprehensive ophthalmic evaluation.
- Genetic screening identified a known CRB1 variant and a novel CRB1 mutation (c.4014T>A).
- The patient presented with therapy-refractory CME, atypical for CRB1-related maculopathy.
Findings:
- A novel CRB1 mutation (c.4014T>A) was discovered.
- The newly identified CRB1 variant may be associated with a poor prognosis for CME treatment responsiveness.
- This case highlights a unique phenotypic presentation in CRB1-related retinal disease.
Implications:
- This study expands the phenotypic spectrum of CRB1-related retinal disorders.
- Genetic testing for unexplained CME can reveal underlying CRB1 variants.
- Identifying genotype-phenotype correlations can guide treatment strategies and prognosis for CRB1-related conditions.
