The principle of WHOeyes is based on how an eye care professional would assess visual acuity using a conventional chart in a clinical setting. The accuracy and usability of the app were tested in ...

Credit: Shutterstock. Individuals can complete the test in approximately 6 minutes, at which point the test results will be made available to an eye care professional. The Food and Drug Administration ...

Please provide your email address to receive an email when new articles are posted on . Children had better near and distance visual acuity than adults before receiving visual aids. Optical aids were ...