PMID- 34025119 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220423 IS - 1177-5467 (Print) IS - 1177-5483 (Electronic) IS - 1177-5467 (Linking) VI - 15 DP - 2021 TI - OCT Variability Prevents Their Use as Robust Biomarkers in Multiple Sclerosis. PG - 2025-2036 LID - 10.2147/OPTH.S309703 [doi] AB - OBJECTIVE: To evaluate the agreement between the peripapillary retinal nerve fiber layer (pRNFL) and foveal thickness (FT) measurements among three different spectral domain-optical coherence tomography (SD-OCT) instruments in a sample of multiple sclerosis (MS) patients and a healthy age-matched control group. METHODS: An observational cross-sectional study with three groups: healthy subjects and MS patients w/w a previous clinical diagnosis of optic neuritis (ON) was conducted. The pRNFL and FT were measured using three different SD-OCT instruments (OCT PRIMUS 200 and OCT CIRRUS 500 SD-OCT [Carl Zeiss Meditec] and OCT 3D 2000 [Topcon]). RESULTS: Twenty eyes from 10 healthy subjects matched in age with MS patients without a previous history of eye disease and 62 MS eyes from 31 MS patients (29 eyes without history of ON and 33 eyes with history of ON) were enrolled. Healthy subjects and MS patients without ON did not show differences between the pRNFL and FT thickness (P>0.99) with any of the instruments. However, MS eyes with a previous episode of ON showed thinner pRNFL and FT (P<0.01). PRIMUS and CIRRUS OCT showed better agreement of the pRNLF and FT in both healthy and MS eyes. However, 3D OCT showed less agreement in the pRNFL measurement with CIRRUS in both healthy and MS eyes. INTERPRETATION: Although OCT is a valuable technology to improve MS patient assessment, differences between devices must be taken into account. It is necessary to create an international group that standardizes the measurement conditions and above all that provides reference bases for normal subjects. CI - (c) 2021 Para-Prieto et al. FAU - Para-Prieto, Marta AU - Para-Prieto M AD - Universidad de Valladolid, Instituto Universitario de Oftalmobiologia Aplicada (IOBA Eye Institute), Valladolid, 47011, Spain. AD - Hospital Clinico Universitario, Department of Ophthalmology, Valladolid, 47005, Spain. FAU - Martin, Raul AU - Martin R AUID- ORCID: 0000-0001-7156-619X AD - Universidad de Valladolid, Instituto Universitario de Oftalmobiologia Aplicada (IOBA Eye Institute), Valladolid, 47011, Spain. AD - Universidad de Valladolid, Departamento de Fisica Teorica, Atomica y Optica, Valladolid, 47011, Spain. AD - Plymouth University, Faculty of Health and Human Sciences, Plymouth, UK. FAU - Crespo, Sara AU - Crespo S AUID- ORCID: 0000-0003-2066-3621 AD - Hospital Clinico Universitario, Department of Ophthalmology, Valladolid, 47005, Spain. FAU - Mena-Garcia, Laura AU - Mena-Garcia L AD - Universidad de Valladolid, Instituto Universitario de Oftalmobiologia Aplicada (IOBA Eye Institute), Valladolid, 47011, Spain. FAU - Valisena, Andres AU - Valisena A AD - Hospital Clinico Universitario, Department of Ophthalmology, Valladolid, 47005, Spain. FAU - Cordero, Lisandro AU - Cordero L AD - Universidad de Valladolid, Instituto Universitario de Oftalmobiologia Aplicada (IOBA Eye Institute), Valladolid, 47011, Spain. FAU - Gonzalez Fernandez, Gloria AU - Gonzalez Fernandez G AD - Hospital Clinico Universitario, Department of Ophthalmology, Valladolid, 47005, Spain. FAU - Arenillas, Juan F AU - Arenillas JF AD - Hospital Clinico Universitario, Department of Neurology, Valladolid, 47005, Spain. FAU - Tellez, Nieves AU - Tellez N AD - Hospital Clinico Universitario, Department of Neurology, Valladolid, 47005, Spain. FAU - Pastor, Jose Carlos AU - Pastor JC AUID- ORCID: 0000-0001-5934-7306 AD - Universidad de Valladolid, Instituto Universitario de Oftalmobiologia Aplicada (IOBA Eye Institute), Valladolid, 47011, Spain. AD - Hospital Clinico Universitario, Department of Ophthalmology, Valladolid, 47005, Spain. LA - eng PT - Journal Article DEP - 20210514 PL - New Zealand TA - Clin Ophthalmol JT - Clinical ophthalmology (Auckland, N.Z.) JID - 101321512 PMC - PMC8132465 OTO - NOTNLM OT - foveal thickness; FT OT - multiple sclerosis; MS OT - retinal nerve fiber layer; RNFL OT - spectral-domain optical coherence tomography; SD-OCT OT - variability COIS- Dr Juan F. Arenillas reports personal fees from Boehringer Ingelheim, personal fees from Bayer, personal fees from Medtronic, personal fees from Daiichi Sankyo, personal fees from BMS-Pfizer, personal fees from Amgen, personal fees from Astra Zeneca, grants from Spanish Ministry Economy, grants from European Commission, grants from Castilla y Leon Department of Education, outside the submitted work. None of the authors has any other financial or proprietary interest in neither material nor method mentioned. EDAT- 2021/05/25 06:00 MHDA- 2021/05/25 06:01 PMCR- 2021/05/14 CRDT- 2021/05/24 08:00 PHST- 2021/03/05 00:00 [received] PHST- 2021/04/08 00:00 [accepted] PHST- 2021/05/24 08:00 [entrez] PHST- 2021/05/25 06:00 [pubmed] PHST- 2021/05/25 06:01 [medline] PHST- 2021/05/14 00:00 [pmc-release] AID - 309703 [pii] AID - 10.2147/OPTH.S309703 [doi] PST - epublish SO - Clin Ophthalmol. 2021 May 14;15:2025-2036. doi: 10.2147/OPTH.S309703. eCollection 2021.