Inherited retinal diseases (IRDs) are a group of phenotypically diverse disorders with varied genetic mutations, which result in retinal degeneration leading to visual impairment. When a patient presents to a clinician who is not an IRD expert, establishing a correct diagnosis can be challenging. The patient and the family members are often anxious about further vision loss. They are eager to know the prognosis and chance of further worsening of the vision. It is important for every eye specialist to educate himself/herself about the basics of IRD. It would help to familiarize oneself about how to approach a patient with an IRD. An early and accurate diagnosis can help predict the vision loss and also help the patient plan his/her education and choose appropriate career choices. An updated knowledge about the genetic mutations, mode of inheritance, and possible therapies would empower the eye specialist to help his/her patients. This article gives a broad plan of how to approach a patient with IRD with regards to characterization and diagnosis of the disorder, visual rehabilitation, and possible therapy.
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http://dx.doi.org/10.4103/ijo.IJO_314_22 | DOI Listing |
Jpn J Clin Oncol
January 2025
Department of Clinical Oncology, Graduate School of Medicine, Akita University, Hondo 1-1-1, Akita, 010-8543, Japan.
Familial adenomatous polyposis (FAP) is an inherited disorder that follows an autosomal dominant inheritance pattern and is caused by a germline pathogenic variant in the APC gene. FAP also has extracolonic manifestations, including osteomas, brain tumors, and congenital hypertrophy of the retinal pigmented epithelium. Desmoid tumor is a rare soft-tissue tumor often associated with FAP.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Ophthalmology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkok Noi, Bangkok, 10700, Thailand.
X-linked juvenile retinoschisis (XLRS) is an inherited retinal disease caused by mutations in the RS1 gene, resulting in splitting of the retinal layers and visual disturbances. To provide insights on this disease in our cohort, genetic examination, clinical presentation, and functional analysis were performed. We observed three main RS1 mutations in our cohort of six unrelated patients: RS1-D126G, RS1-R209H, and RS1-R213W.
View Article and Find Full Text PDFInvest Ophthalmol Vis Sci
January 2025
Institute for Applied Mathematics, University of Bonn, Bonn, Germany.
Purpose: To quantify outer retina structural changes and define novel biomarkers of inherited retinal degeneration associated with biallelic mutations in RPE65 (RPE65-IRD) in patients before and after subretinal gene augmentation therapy with voretigene neparvovec (Luxturna).
Methods: Application of advanced deep learning for automated retinal layer segmentation, specifically tailored for RPE65-IRD. Quantification of five novel biomarkers for the ellipsoid zone (EZ): thickness, granularity, reflectivity, and intensity.
Invest Ophthalmol Vis Sci
January 2025
Department of Ophthalmology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Purpose: This study aimed to identify a novel recombinant adeno-associated virus (rAAV) capsid variant that can widely transfect the deep retina through intravitreal injection and to assess their effectiveness and safety in gene delivery.
Methods: By adopting the sequences of various cell-penetrating peptides and inserting them into the capsid modification region of AAV2, we generated several novel variants. The green fluorescent protein (GFP)-carrying variants were screened following intravitreal injection.
Clin Genet
January 2025
Centro de Responsabilidade Integrado de Oftalmologia Pediátrica (CRI-OftaPed), Hospital Dona Estefânia, Unidade Saúde Local (ULS) São José, E.P.E., Lisboa, Portugal.
The Portuguese Society of Ophthalmology and the Portuguese Society of Human Genetics developed clinical practice guidelines to streamline genetic testing for inherited retinal dystrophies (IRDs), underlining the critical role of molecular diagnosis in enhancing patient care. Genetic testing is pivotal in diagnosis, genetic counselling, prognosis and access to clinical trials, and new gene-specific therapies. These guidelines recommend genetic testing in all IRD patients and provide a detailed assessment of available testing methods, ensuring that genetic counselling is integrated into ophthalmic care.
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