Expanding the Mutation Spectrum for Inherited Retinal Diseases

Area of Science:

• Ophthalmology
• Genetics
• Medical Diagnostics

Background:

• Inherited retinal diseases (IRDs) are a diverse group of genetic disorders causing vision impairment and blindness.
• The heterogeneity of IRDs complicates diagnosis without understanding their genetic basis.
• Genetic testing is crucial for accurate diagnosis and understanding disease mechanisms.

Purpose of the Study:

• To improve diagnostic accuracy for patients with inherited retinal diseases (IRDs).
• To advance the understanding of disease mechanisms underlying IRDs.
• To identify novel genetic variants associated with IRDs.

Main Methods:

• Panel-based genetic sequencing was performed on buccal samples from 103 patients with IRDs.
• Clinical assessments included visual acuity, slit lamp examination, fundus photography, and SD-OCT.
• Data were collected from August 2022 to February 2024.

Main Results:

• Genetic findings were reported for 70 out of 103 patients.
• Twenty novel variants were identified among the patients.
• The study confirmed clinical diagnoses and expanded the known mutation spectrum for IRDs.

Conclusions:

• Genetic testing clarifies clinical diagnoses for IRDs, aiding patient counseling on prognosis and family planning.
• The findings guide potential treatment options for individuals with IRDs.
• This research expands the mutation spectrum, enhancing the understanding of IRD pathogenesis.