Anna Marmalidou, Haleema Siddiqui, Muhammad Usman Jamil, Kwang Min Woo, Antonio Yaghy, A Yasin Alibhai, Hiroyuki Takahashi, Stephanie Kaiser, Keith Effert, Peter Y Zhao, Shilpa J Desai, Christopher C Robinson, Jay S Duker, Nadia K Waheed
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引用次数: 0
Abstract
Purpose: The purpose of this study was to assess the comparability of mean sensitivity (MS) values obtained using the Macular Integrity Assessment (MAIA; CenterVue S.p.A. [iCare], Padova, Italy) and Microperimeter-3 (MP-3; NIDEK CO., Ltd., Gamagori, Japan) microperimetry (MP) devices.
Methods: This cross-sectional study includes subjects with healthy eyes, eyes with diabetes mellitus without diabetic retinopathy (DM no DR), diabetic retinopathy (DR), and non-exudative age-related macular degeneration (AMD). Patients underwent testing on both MAIA and MP-3 MP devices, using a 10-2 macular grid with 68 stimuli and identical parameters. A diagnosis-adjusted linear regression model and mixed modeling mapped MP-3 MS to MAIA MS and Bland-Altman analysis were used to assess the agreement.
Results: One hundred eleven eyes (43 healthy eyes, 14 eyes with DM no DR, 32 eyes with DR, and 22 eyes with AMD) from 80 subjects (age = 57.2 ± 20.3 years) were enrolled. MAIA consistently showed higher MS than MP-3. The MP-3 device detected absolute scotomatous points in more eyes than MAIA (6 eyes [MAIA] vs. 10 eyes [MP-3]). Healthy eyes exhibited stronger agreements than those with DR (P < 0.001) or AMD (P = 0.015). Converting MP-3 to MAIA MS improved agreement and reduced coefficients of repeatability (CoRs) but did not fully account for inter-device variability. MP-3 classified more eyes as having relatively unstable or unstable fixation than MAIA (P = 0.014).
Conclusions: Both devices effectively detect retinal functional changes and scotomas. The conversion methods developed in this study can aid cross-device comparisons, but retinal pathologies (DM and AMD) introduce additional inter-device variability. Future studies incorporating multiple devices should account for this variability in their study design.
期刊介绍:
Investigative Ophthalmology & Visual Science (IOVS), published as ready online, is a peer-reviewed academic journal of the Association for Research in Vision and Ophthalmology (ARVO). IOVS features original research, mostly pertaining to clinical and laboratory ophthalmology and vision research in general.