PMID- 34111252 OWN - NLM STAT- MEDLINE DCOM- 20210628 LR - 20230202 IS - 2164-2591 (Electronic) IS - 2164-2591 (Linking) VI - 10 IP - 6 DP - 2021 May 3 TI - Longitudinal Study of Retinal Structure, Vascular, and Neuronal Function in Patients With Relapsing-Remitting Multiple Sclerosis: 1-Year Follow-Up. PG - 6 LID - 10.1167/tvst.10.6.6 [doi] LID - 6 AB - OBJECTIVE: The purpose of this study was to quantify retinal structural, vascular, and functional changes in patients with relapsing-remitting multiple sclerosis (RRMS) over 1 year. METHODS: Eighty-eight eyes of 44 patients with RRMS underwent assessments of low contrast letter acuity (LCLA), retinal ganglion cell function detected by the steady-state pattern electroretinogram (PERG), axonal microstructural integrity measured as birefringence, intraretinal layer thicknesses by ultra-high-resolution optical coherence tomography (OCT), volumetric vessel density (VVD) by OCT angiography, and retinal tissue perfusion (RTP) by the Retinal Function Imager (RFI). All measurements were performed at baseline and 1-year follow-up. The impacts of disease activities and a history of optic neuritis (ON) were analyzed. RESULTS: Compared to baseline, there were no significant differences in all variables (P > 0.05), except for the axonal birefringence and RTP. The birefringence's of the retinal fiber layer at the temporal and superior quadrants was significantly decreased (P < 0.05), whereas RTP was significantly increased (P < 0.05). In the subgroup with ON, significantly longer PERG latency and decreased VVD were observed at follow-up (P < 0.05). In patients with improved LCLA, significantly increased RTP and decreased VVD (P < 0.05) were also observed. CONCLUSIONS: This is the first longitudinal study that assessed the RTP and VVD, along with other retinal structural and functional parameters in MS. The recovery of retinal vascular function occurred with the improved LCLA, suggesting that these measurements may be associated with disease progression. TRANSLATIONAL RELEVANCE: The retinal microvascular changes could be potential biomarkers for monitoring therapeutic efficacy in MS. FAU - Chen, Qi AU - Chen Q AD - School of Optometry and Ophthalmology, Wenzhou Medical University, Wenzhou, China. AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Jiang, Hong AU - Jiang H AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA. AD - Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Delgado, Silvia AU - Delgado S AD - Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Hernandez, Jeffrey AU - Hernandez J AD - Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Alba, Diego Eduardo AU - Alba DE AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Gregori, Giovanni AU - Gregori G AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Rammohan, Kottil W AU - Rammohan KW AD - Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Porciatti, Vittorio AU - Porciatti V AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA. FAU - Wang, Jianhua AU - Wang J AD - Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA. LA - eng GR - P30 EY014801/EY/NEI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Transl Vis Sci Technol JT - Translational vision science & technology JID - 101595919 SB - IM MH - Follow-Up Studies MH - Humans MH - Longitudinal Studies MH - *Multiple Sclerosis MH - *Multiple Sclerosis, Relapsing-Remitting/diagnostic imaging MH - Retina/diagnostic imaging PMC - PMC8107487 COIS- Disclosure: Q. Chen, None; H. Jiang, None; S. Delgado, None; J. Hernandez, None; D.E. Alba, None; G. Gregori, None; K.W. Rammohan, None; V. Porciatti, None; J. Wang, None EDAT- 2021/06/11 06:00 MHDA- 2021/06/29 06:00 PMCR- 2021/05/05 CRDT- 2021/06/10 17:27 PHST- 2021/06/10 17:27 [entrez] PHST- 2021/06/11 06:00 [pubmed] PHST- 2021/06/29 06:00 [medline] PHST- 2021/05/05 00:00 [pmc-release] AID - 2772568 [pii] AID - TVST-20-2898 [pii] AID - 10.1167/tvst.10.6.6 [doi] PST - ppublish SO - Transl Vis Sci Technol. 2021 May 3;10(6):6. doi: 10.1167/tvst.10.6.6.