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Abstract #117477 Published in IGR 24-4
Rapid campimetry - a novel robust kinetic approach for visual field screening in glaucoma
Al-Nosairy KO; Al-Nosairy KO; Rodenbeck K; Vorholt S; Djouoma N; Thieme H; Müller F; Hoffmann MBFrontiers in medicine 2024; 11: 1419147
PURPOSE: To investigate the robustness and variability of a novel kinetic visual field (VF) screening method termed rapid campimetry (RC). METHODS: In RC visual field (VF) screening is enabled via kinetic-based testing on any computer (10°/4.7 s at 40-cm viewing distance) and high contrast in a dark room (1 cd/cm). In experiment (1): 30 participants [20 healthy participants (HC), 5 glaucoma patients (GLA) and 5 patients with cataract (CAT)] were included to test the intra-session variability (fatigue effect) and the following effects on RC: room illumination (140 cd/m), ±3 D refractive errors, media opacity. In experiment (2): Inter-session variability (1-3 weeks apart) was assessed in 10 HC and 10 GLA. Since RC detects absolute scotomas, the outcome measure was the size of physiological (blindspot) and pathological (glaucoma) scotomas in degrees. A repeated measures ANOVA was employed in experiment 1 and intraclass correlation (ICC) in experiment 2. RESULTS: Neither the size of the blindspot nor the VF defects differed significantly between the different testing conditions. For intra-session variability, the average bias of blindspot size was -0.6 ± 2.5°, limits of agreement (LOA), in comparison to 0.3 ± 1.5° for VF defects, both with ICC of 0.86 and 0.93, respectively. For the inter-session repeatability, the average bias and LOA for blindspot size was 0.2 ± 3.85° in comparison 1.6 ± 3.1° for VF defects, both with ICC of 0.87 and 0.91, respectively. CONCLUSION: RC was robust to suboptimal testing VF conditions and showed good-to-excellent reliability between VF testing visits holding high potential for teleophthalmology.
Department of Ophthalmology, Faculty of Medicine, Otto-von-Guericke University, Magdeburg, Germany.
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