title: Severe juvenile retinoschisis associated with a 33-bps deletion in XLRS1 gene.
abstract: X-linked juvenile retinoschisis is a form of vitreoretinal dystrophy that is characterized by foveal and peripheral splitting of the retinal nerve fiber layer. Pathognomonic of this disorder is a microcystic radiate appearance in the fovea. We encountered a 10 year-old, mildly retarded, Japanese boy, who exhibited a widely extended macular retinoschisis bilaterally. A break in the inner layer of the left eye mimicked a lamellar macular hole, which is a rare manifestation of the disease. Peripheral retinoschisis was absent. Only a few reports have described marked bilateral macular retinoschisis that involved entire posterior pole, while various other macular findings have been reported. This patient with a severe form of retinoschisis was found to harbor the deletion of 33 base pairs, including the boundary region of exon 3 and intron 3 in the XLRS1 gene.
authors.affiliation: Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan. naoko@med.keio.ac.jp
authors.forename: K
authors.initials: K
authors.lastname: Shinoda
authors.forename: Y
authors.initials: Y
authors.lastname: Mashima
authors.forename: S
authors.initials: S
authors.lastname: Ishida
authors.forename: Y
authors.initials: Y
authors.lastname: Oguchi
mesh_terms: D002648:Child; D005136:Eye Proteins / Q000235:genetics*; D005654:Fundus Oculi; D006801:Humans; D008268:Macular Degeneration / Q000235:genetics; D008297:Male; D012164:Retinal Diseases / Q000235:genetics*; D017384:Sequence Deletion; D014960:X Chromosome
chemical_list: D005136:Eye Proteins; C108726:RS1 protein, human