Evaluation of Fundus Examination of Hunting Dogs' Eyes Using a Smartphone-Based Camera

Abstract

Fundus imaging with a smartphone-based camera has been reported in a limited number of literature, particularly in patient groups (pediatric/geriatric ie.) considered to be incompatible. In this study, by examining both eyes of 20 hunting dogs, multiple shooting series (20 sequential shooting automatic series with 1-second interval) and video sequence (a video that started shooting at 30-second and/or 60-second intervals) were recorded. The patients were first examined without any intervention. Afterwards, mydriatic drops were applied and the examination was repeated within the effective period. During the examination, optic disc nerve head, tapetum lucidum, non-tepatal region, retinal vessels, and choroid vessels were visualized in the posterior segment. Focal light artifacts were common when photographing the tapetum lucidum. The minimum light intensity was chosen to display the tapetum lucidum. No significant difference was observed between the examinations performed before the mydriatic drop and the examinations performed after the mydriatic drop. Further studies are recommended to formally assess clinical benefit.