Impact of eye-tracking technology on OCT-angiography imaging quality in age-related macular degeneration

Impact of eye-tracking technology on OCT-angiography imaging quality in age-related macular... Objective To evaluate the impact of eye-tracking (ET) technol- diate stages of AMD. Four patients had an atrophic late stage and ogy on optical coherence tomography angiography (OCT-A) ten patients an exudative stage of the disease. SSI was 53.55 with image quality and manifestation of motion artifacts in patients inactive and 57.18 with active ET (p = 0.0005). Coefficients of with age-related macular degeneration (AMD). variability of VD between the first and second measurement Methods In a prospective trial, multimodal retinal imaging in- were 8.9% with inactive and 5.7% with active ET. Mean image cluding OCT-Awas performed in 30 patients (78.97 ± 9.7 years) acquisition time was 15.97 s (active ET: 22.88 s, p < 0.001). affected by different stages of AMD. Central 3 × 3 mm OCT-A Presence of motion artifacts was significantly higher with inac- imaging was performed four times consecutively in each patient, tive ET (mean MAS 3.27 vs. 1.93; p < 0.0001). MAS correlated twice with active, and twice with inactive ET. Parameters for with AMD disease stage [p = 0.0031 (inactive ET) and image evaluation were signal strength index (SSI), variability p < 0.0001 (active ET)] and with SSI (p =0.0072 and of foveal Graefe's Archive for Clinical and Experimental Ophthalmology Springer Journals

Impact of eye-tracking technology on OCT-angiography imaging quality in age-related macular degeneration

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Springer Berlin Heidelberg
Copyright © 2017 by Springer-Verlag Berlin Heidelberg
Medicine & Public Health; Ophthalmology
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