In this presentation from Pediatric Ophthalmology Subspecialty Day 2022, Dr. Gena Heidary discusses smartphone applications for vision assessment. Specifically, she presents the results of a review of validation studies that compared smartphone apps with an in-office reference. Among the heterogeneous group of applications, Peek Acuity and Eye Handbook are reviewed in more detail. Dr. Heidary cites validation/accuracy, test-retest reliability, multiplatform availability, and ease of use as factors to consider when choosing a smartphone app.