PMID- 32314032 OWN - NLM STAT- MEDLINE DCOM- 20210413 LR - 20210807 IS - 1435-702X (Electronic) IS - 0721-832X (Linking) VI - 258 IP - 7 DP - 2020 Jul TI - Reduced photoreceptor outer segment layer thickness in mild commotio retinae without ellipsoid zone disruption. PG - 1437-1442 LID - 10.1007/s00417-020-04678-9 [doi] AB - PURPOSE: To quantitatively investigate the reflectivity and structure of the outer retinal layers on spectral-domain optical coherence tomography (SD-OCT) in commotio retinae. METHODS: Nineteen patients with acute macular commotio retinae and 19 age-matched normal controls were examined using SD-OCT. Longitudinal reflectance profiles (LRP) were obtained using Image J. The reflectivity of outer retinal layers was measured at the fovea, 1 mm nasal to fovea and 1 mm temporal to fovea. The reflectivity ratios of outer retinal layers divided by the outer nuclear layer (ONL) were calculated for normalization. Photoreceptor outer segment layer thickness was also measured. The results were compared between the patients and controls. RESULTS: The reflectivity ratio of ellipsoid zone/ONL and outer segment/ONL was higher in commotio retinae than in controls only at fovea (12.66 +/- 4.73 vs 9.67 +/- 3.34, p = 0.041; 7.70 +/- 2.20 vs 3.73 +/- 1.63, p < 0.001, respectively) but not at 1 mm nasal or temporal to the fovea. Photoreceptor outer segment layer thickness was significantly shorter in commotio retinae compared to controls at all three locations (19.64 +/- 3.05 vs 25.16 +/- 3.53, 16.95 +/- 4.02 vs 20.00 +/- 3.00, and 15.42 +/- 3.22 vs 20.05 +/- 2.48, respectively, all p < 0.05). CONCLUSIONS: Quantitative measurement of SD-OCT images revealed that shortening of photoreceptor outer segment is an additional, and potentially better, biomarker for commotio retinae on top of increased reflectivity. FAU - Xia, Honghe AU - Xia H AD - Joint Shantou International Eye Center, Shantou University & the Chinese University of Hong Kong, North Dongxia Road, Shantou, 515041, Guangdong Province, China. FAU - Ke, Xixuan AU - Ke X AD - Joint Shantou International Eye Center, Shantou University & the Chinese University of Hong Kong, North Dongxia Road, Shantou, 515041, Guangdong Province, China. FAU - Chen, Li Jia AU - Chen LJ AD - Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China. FAU - Yan, Hua AU - Yan H AD - General Hospital, Tianjin Medical University, Tianjin, China. FAU - Chen, Haoyu AU - Chen H AUID- ORCID: 0000-0003-0676-4610 AD - Joint Shantou International Eye Center, Shantou University & the Chinese University of Hong Kong, North Dongxia Road, Shantou, 515041, Guangdong Province, China. drchenhaoyu@gmail.com. LA - eng GR - 002-18119101/Grant for Key Disciplinary Project of Clinical Medicine under the Guangdong High-level University Development Program/ GR - 170829231930502/Shantou Science and Technology Program/ GR - 2012-18/Research Grant of Joint Shantou International Eye Center/ PT - Journal Article DEP - 20200420 PL - Germany TA - Graefes Arch Clin Exp Ophthalmol JT - Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie JID - 8205248 SB - IM MH - Adolescent MH - Adult MH - Child MH - Eye Injuries/*diagnosis MH - Female MH - Follow-Up Studies MH - Humans MH - Male MH - Middle Aged MH - Retina/diagnostic imaging/*injuries MH - Retinal Photoreceptor Cell Outer Segment/*pathology MH - Retrospective Studies MH - Tomography, Optical Coherence/*methods MH - *Visual Acuity MH - Wounds, Nonpenetrating/*diagnosis MH - Young Adult OTO - NOTNLM OT - Commotio retinae OT - Optical coherence tomography OT - Photoreceptor outer segment OT - Reflectivity EDAT- 2020/04/22 06:00 MHDA- 2021/04/14 06:00 CRDT- 2020/04/22 06:00 PHST- 2020/01/08 00:00 [received] PHST- 2020/04/01 00:00 [accepted] PHST- 2020/02/28 00:00 [revised] PHST- 2020/04/22 06:00 [pubmed] PHST- 2021/04/14 06:00 [medline] PHST- 2020/04/22 06:00 [entrez] AID - 10.1007/s00417-020-04678-9 [pii] AID - 10.1007/s00417-020-04678-9 [doi] PST - ppublish SO - Graefes Arch Clin Exp Ophthalmol. 2020 Jul;258(7):1437-1442. doi: 10.1007/s00417-020-04678-9. Epub 2020 Apr 20.