Peng C, Li L, Yang M, Teng D, Wang J, Lai M, Qian H, Li H, Zhou H, Xu Q, Wei S. Different alteration patterns of sub-macular choroidal thicknesses in aquaporin-4 immunoglobulin G antibodies sero-positive neuromyelitis optica spectrum diseases and isolated optic neuritis.
Acta Ophthalmol 2020;
98:808-815. [PMID:
32657009 DOI:
10.1111/aos.14325]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 11/10/2019] [Indexed: 01/04/2023]
Abstract
PURPOSE
The ocular choroid is a sensitive biomarker of vascular perfusion in optic neuritis (ON) patients due to its vascular structures. The purpose of this study was to evaluate alterations in sub-macular choroidal thicknesses (sub-MCT) in aquaporin-4 immunoglobulin G antibodies (AQP4-IgG) sero-positive neuromyelitis optica spectrum disease (AQP4-IgG+/NMOSD) and isolated ON (ION) patients using optical coherence tomography (OCT).
METHODS
A total of 208 ON patients (275 eyes) and healthy controls (HCs) who underwent sub-MCT and retinal microstructure detection with OCT were enrolled in this study.
RESULTS
Among all the ON patients, 102 (49.0%) cases were identified as serum AQP4-IgG-positive, with 106 (51.0%) cases being negative, excluding multiple sclerosis as the ION cohort. The sub-MCT in the AQP4-IgG+/NMOSD patients decreased in 0-6 months after ON attacks. However, for the ION cohort, the sub-MCT decreased in 0-2 months and then stayed normal or slightly increased in 2-4 months after the first ON attack, finally sharply decreasing after 6 months. For unilateral AQP4-IgG+/NMOSD patients, eyes without ON also presented retinal layer thinning and sub-MCT slight reduction independent of ON attacks.
CONCLUSIONS
The sub-MCT in AQP4-IgG+/NMOSD patients were reduced at all stages of ON, which distinguished the ION patients as decreasing only at chronic stage of ON. It implied that ocular vascular hypoperfusion plays a potential role in ON pathogenesis and the different patterns could be caused by the distinct pathogenesis of AQP4-IgG+/NMOSD and ION.
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