Impaired vision and blindness are common. About 3.4 million people in the US are blind or visually impaired. Vision is usually measured by visual acuity charts, and normal vision is expressed as 20/20 ...

Please provide your email address to receive an email when new articles are posted on . The Hadassah Self-Visual Acuity Screener demonstrated high reliability, accuracy and alignment with standard ...

A smartphone app was found to be useful and reliable by clinicians when testing vision for children during the COVID-19 pandemic. Assessing vision was found to be easy by families and reliable by ...