Validation of an Independent Web-Based Tool for Measuring Visual Acuity and Refractive Error (the Manifest versus Online Refractive Evaluation Trial): Prospective Open-Label Noninferiority Clinical Trial.
Robert P L WisseMarc B MuijzerFrancesco CassanoDaniel A GodefrooijYves F D M PrevooNienke SoetersPublished in: Journal of medical Internet research (2019)
Clinicaltrials.gov NCT03313921; https://clinicaltrials.gov/ct2/show/NCT03313921.