PMID- 30055151 OWN - NLM STAT- MEDLINE DCOM- 20190903 LR - 20240109 IS - 1879-1891 (Electronic) IS - 0002-9394 (Print) IS - 0002-9394 (Linking) VI - 195 DP - 2018 Nov TI - Deep Scleral Exposure: A Degenerative Outcome of End-Stage Stargardt Disease. PG - 16-25 LID - S0002-9394(18)30399-4 [pii] LID - 10.1016/j.ajo.2018.07.018 [doi] AB - PURPOSE: To describe a distinct phenotypic outcome of outer retinal degeneration in a cohort of genetically confirmed patients with recessive Stargardt disease (STGD1). DESIGN: Retrospective case series. METHODS: Twelve patients, who were clinically diagnosed with STGD1 and exhibited a unique degenerative phenotype, were included in the study. Two disease-causing mutations were found in all patients by direct sequencing of the ABCA4 gene. Clinical characterization of patients were defined on fundus photographs, autofluorescence images (488-nm and 532-nm excitation), spectral-domain optical coherence tomography (SD-OCT), and full-field electroretinogram (ffERG) testing. RESULTS: Mean age at initial presentation was 67.8 years and reported age of symptomatic onset was 14.1 years (mean disease duration = 53.8 years). Best-corrected visual acuity ranged from 20/400 to hand motion. All patients exhibited advanced degeneration across the posterior pole resulting in a reflectively pale, blonde fundus owing to unobstructed exposure of the underlying sclera. SD-OCT revealed complete loss of the outer retinal bands (external limiting membrane, ellipsoid zone, interdigitation zone, and retinal pigment epithelium) and choroidal layers. Scotopic and photopic waveforms on ffERG were nonrecordable or severely attenuated in 8 patients who were tested. CONCLUSIONS: Widespread scleral exposure is a clinical outcome in a subset of STGD1 following a long duration of disease progression ( approximately 50 years). The blonde fundus in such cases may exhibit phenotypic overlap and shared therapeutic implications with other aggressive chorioretinal dystrophies such as end-stage choroideremia, gyrate atrophy, or RPE65-Leber congenital amaurosis. CI - Copyright (c) 2018 Elsevier Inc. All rights reserved. FAU - Lee, Winston AU - Lee W AD - Department of Ophthalmology, Columbia University, New York, New York, USA. FAU - Zernant, Jana AU - Zernant J AD - Department of Ophthalmology, Columbia University, New York, New York, USA. FAU - Nagasaki, Takayuki AU - Nagasaki T AD - Department of Ophthalmology, Columbia University, New York, New York, USA. FAU - Tsang, Stephen H AU - Tsang SH AD - Department of Ophthalmology, Columbia University, New York, New York, USA. FAU - Allikmets, Rando AU - Allikmets R AD - Department of Ophthalmology, Columbia University, New York, New York, USA; Department of Pathology & Cell Biology, Columbia University, New York, New York, USA. Electronic address: rla22@cumc.columbia.edu. LA - eng GR - P30 EY019007/EY/NEI NIH HHS/United States GR - R01 EY021163/EY/NEI NIH HHS/United States GR - R24 EY019861/EY/NEI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20180726 PL - United States TA - Am J Ophthalmol JT - American journal of ophthalmology JID - 0370500 RN - 0 (ABCA4 protein, human) RN - 0 (ATP-Binding Cassette Transporters) SB - IM MH - ATP-Binding Cassette Transporters/genetics MH - Aged MH - Aged, 80 and over MH - Autogenic Training MH - Color Vision/physiology MH - Electroretinography MH - Female MH - Fluorescein Angiography/methods MH - High-Throughput Nucleotide Sequencing MH - Humans MH - Macular Degeneration/*congenital/diagnosis/genetics/physiopathology MH - Male MH - Middle Aged MH - Night Vision/physiology MH - Optical Imaging MH - Phenotype MH - Retina/physiopathology MH - Retinal Degeneration/*diagnosis/genetics/physiopathology MH - Retrospective Studies MH - Stargardt Disease MH - Tomography, Optical Coherence/methods MH - Visual Acuity/physiology PMC - PMC6547128 MID - NIHMS1032318 EDAT- 2018/07/29 06:00 MHDA- 2019/09/04 06:00 PMCR- 2019/06/04 CRDT- 2018/07/29 06:00 PHST- 2018/01/23 00:00 [received] PHST- 2018/07/16 00:00 [revised] PHST- 2018/07/18 00:00 [accepted] PHST- 2018/07/29 06:00 [pubmed] PHST- 2019/09/04 06:00 [medline] PHST- 2018/07/29 06:00 [entrez] PHST- 2019/06/04 00:00 [pmc-release] AID - S0002-9394(18)30399-4 [pii] AID - 10.1016/j.ajo.2018.07.018 [doi] PST - ppublish SO - Am J Ophthalmol. 2018 Nov;195:16-25. doi: 10.1016/j.ajo.2018.07.018. Epub 2018 Jul 26.