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Abstract
The rise of telemedicine in the wake of the COVID-19 pandemic has posed challenges for ophthalmologists and optometrists, as there are hardly any smartphone applications that meet high accuracy requirements for obtaining visual acuity (VA) in clinical use. The application vision.app is a novel smartphone app that adjusts the angular size of the optotype based on the face-device distance in real time. The high spatial resolution of modern smartphone screens facilitates measurements at a handheld distance, which makes it particularly valuable for use in pediatric populations which struggle to focus on distant stimuli.
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