PMID- 34634624 OWN - NLM STAT- MEDLINE DCOM- 20211216 LR - 20230202 IS - 2211-0356 (Electronic) IS - 2211-0348 (Linking) VI - 56 DP - 2021 Nov TI - Retinal microvascular and neuronal function in patients with multiple sclerosis: 2-year follow-up. PG - 103314 LID - S2211-0348(21)00581-2 [pii] LID - 10.1016/j.msard.2021.103314 [doi] AB - OBJECTIVE: To determine the longitudinal changes in retinal microstructure, microvasculature, microcirculation, and axonal and neuronal functions in patients with relapsing-remitting multiple sclerosis (RRMS) over the time course of about two years. METHODS: A total of 30 patients (60 eyes) with RRMS were followed for a period of 27 +/- 6 months and evaluated with a battery of clinical tests including low contrast letter acuity (LCLA), intraretinal layer thicknesses by optical coherence tomography (OCT), ganglion cell function by steady-state pattern electroretinography (PERG), axonal function by polarization-sensitive OCT, volumetric vessel density (VVD) by OCT angiography, and retinal tissue perfusion (RTP) by retinal function imager. RESULTS: Axonal function measured as retinal nerve fiber layer birefringence in the temporal quadrant and vessel density in the deep vascular plexus were significantly decreased at 2-year follow-up (P < 0.05). Subgroup analyses showed that the increased retinal blood flow volume occurred in patients with no evidence of disease activity (NEDA), and with stable or improved visual function (P < 0.05). There was no significant difference in the expanded disability state scale, LCLA, RTP, VVD, or PERG measures between the two visits (P > 0.05). CONCLUSION: To our best knowledge, this is the first 2-year prospective comprehensive study with a detailed assessment of retinal microstructure and neuronal functions in patients with RRMS. The recovery of retinal microcirculation occurred in patients with NEDA, and stable or improved visual function, suggesting these measurements as potential imaging biomarkers for monitoring disease progression. CI - Copyright (c) 2021 Elsevier B.V. All rights reserved. FAU - Chen, Qi AU - Chen Q AD - School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, China; Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, United States. FAU - Fang, Min AU - Fang M AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, United States; Shenzhen Key Laboratory of Ophthalmology, Shenzhen Eye Hospital, Jinan University, Shenzhen, China. FAU - Miri, Shahnaz AU - Miri S AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, United States. FAU - Thakor, Kinjal AU - Thakor K AD - Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, United States. FAU - Delgado, Silvia AU - Delgado S AD - Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, United States. FAU - Hernandez, Jeffrey AU - Hernandez J AD - Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, United States. FAU - Alba, Diego Eduardo AU - Alba DE AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, United States. FAU - Gregori, Giovanni AU - Gregori G AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, United States. FAU - Porciatti, Vittorio AU - Porciatti V AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, United States. FAU - Wang, Jianhua AU - Wang J AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, United States. FAU - Jiang, Hong AU - Jiang H AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, United States; Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, United States. Electronic address: h.jiang@med.miami.edu. LA - eng GR - P30 EY014801/EY/NEI NIH HHS/United States PT - Journal Article DEP - 20211004 PL - Netherlands TA - Mult Scler Relat Disord JT - Multiple sclerosis and related disorders JID - 101580247 SB - IM MH - Follow-Up Studies MH - Humans MH - *Multiple Sclerosis/diagnostic imaging MH - *Multiple Sclerosis, Relapsing-Remitting MH - Prospective Studies MH - Retina/diagnostic imaging MH - Tomography, Optical Coherence OTO - NOTNLM OT - Birefringence OT - Multiple sclerosis OT - Retinal microstructure OT - Retinal microvasculature OT - Retinal nerve fiber layer EDAT- 2021/10/12 06:00 MHDA- 2021/12/17 06:00 CRDT- 2021/10/11 20:23 PHST- 2021/02/25 00:00 [received] PHST- 2021/09/11 00:00 [revised] PHST- 2021/10/03 00:00 [accepted] PHST- 2021/10/12 06:00 [pubmed] PHST- 2021/12/17 06:00 [medline] PHST- 2021/10/11 20:23 [entrez] AID - S2211-0348(21)00581-2 [pii] AID - 10.1016/j.msard.2021.103314 [doi] PST - ppublish SO - Mult Scler Relat Disord. 2021 Nov;56:103314. doi: 10.1016/j.msard.2021.103314. Epub 2021 Oct 4.