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Use of a Smartphone-Based Device for Fundus Examination in Birds: A Pilot Study

Abstract : Ophthalmic examination is essential in the avian triage process in order to apply prompt therapeutic plans and evaluate rehabilitation potential. Fundoscopy is traditionally performed by direct or indirect ophthalmoscopy. Recent technological developments have enabled the design of a small-sized and affordable retinal imaging system to examine the fundus. We investigate the use of a smartphone-based device to realize fundus examination through a prospective cross-sectional observational study. Seventy-seven eyes of 39 birds of 15 different species were evaluated using the smartphone-based device in a rescue wildlife center. Pupil dilation was achieved prior to examination via rocuronium topical application. Assessment of fundus by the smartphone was classified as satisfactory, moderately satisfactory, and unsatisfactory. Fundus examination was also performed with a 20D, 30D, or 78D lens for comparison. Pupillary dilation was satisfactory, moderately satisfactory, or absent in 17, 32, and 28 eyes, respectively. Fundus examination with the smartphone-based device was satisfactory, moderately satisfactory, or unsatisfactory in 44, 15, and 18 eyes, respectively. The feasibility of the fundus examination was affected by the form of the globe; by the quality of pupil dilation; by the color of the iris (images could not be obtained from species with an orange, bright iris); and by the species, with owls (Strigiformes) being the easiest to observe. Based on these findings, fundus examination was feasible in most bird species examined in this study.
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https://hal-enva.archives-ouvertes.fr/hal-03843406
Contributeur : Brigitte Laude Connectez-vous pour contacter le contributeur
Soumis le : mardi 8 novembre 2022 - 10:38:52
Dernière modification le : mercredi 23 novembre 2022 - 12:01:44

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Aure-Eline Grillot, Thomas Coutant, Eva Louste, Cécile Le Barzic, Pascal Arné, et al.. Use of a Smartphone-Based Device for Fundus Examination in Birds: A Pilot Study. Animals, 2022, 12 (18), pp.2429. ⟨10.3390/ani12182429⟩. ⟨hal-03843406⟩

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