ArticleDocumenta ophthalmologica. Advances in ophthalmology2025
Inter-session repeatability of electroretinography and visual evoked potentials of the Celeris system.
Article in Documenta ophthalmologica. Advances in ophthalmology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeThe Celeris system (Diagnosys LLC) offers a streamlined alternative to the gold-standard Espion system for high-throughput electroretinography (ERG) and visual evoked potentials (VEP) in preclinical studies. This study evaluated its inter-session repeatability of ERG and VEP measurements in healthy rodent retinae.
methodsTwenty-five wild type Brown Norway rats underwent ERG and VEP testing across two sessions. Dark-adapted ERG a- and b-waves (flash stimulus of 10 cd s/m
resultsIntersession dark-adapted a-wave showed a correlation of ρ = 0.73, (P < 0.0001), LOA: -106.4 to 113.9 µV, and 90% of measurements fell within - 24.8 to 58.0% variation (90% range). Intersession dark-adapted b-wave amplitudes showed ρ = 0.65, (P < 0.001), LOA: - 402.5 to 437.4 µV, and 90% range: - 33.7 to 72.6%. Inter-session PhNR-B (base-to-trough) and PhNR-P (peak-to-trough) amplitudes showed ρ = 0.66 and 0.72 respectively; LOA: - 26.7 to 31.1 µV and - 98.9 to 100.1 µV respectively; 90% ranges: - 58.2 to 59.3%, and - 45.6 to 60.9%, respectively. Inter-session VEP P2 amplitude showed ρ = 0.67, (P < 0.001), LOA: 78.5-72.8 µV, and 90% range: - 52.2 to 67.9%. Inter-session VEP implicit time showed ρ = 0.48, (P < 0.05), LOA: - 39.4 to 38.3 ms, and 90% range: - 39.2% to 16.7%.
conclusionThe study reported the inter-session repeatability of the ERG and VEP tests using the Celeris system. These data facilitate the study design and sample size calculation for future preclinical studies using the Celeris, and serve as a reference for future comparison with other systems, protocols and species.
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