Eye'sTest vs PA Eye Chart

Thank you — more than 120,000 people have used this app. Take a 10-second vision check on your iPhone's high-resolution display every day, and keep an eye on how much screen work is straining your eyes. [Features] - The Landolt C ring rotates randomly, so you can test as many times as you like without memorizing the pattern - High-resolution displays are supported: check your visual acuity up to 2.0 - Acuity levels from 0.01 to 0.09 are checked in 0.01 steps - At 20 cm from the screen, you can measure from 0.02 to 0.4 - At 30 cm: 0.03 to 0.6 / at 40 cm: 0.02 to 0.8 / at 50 cm: 0.02 to 1.0 - At 60 cm: 0.02 to 1.2 / at 70 cm: 0.02 to 1.4 / at 80 cm: 0.02 to 1.6 - At 90 cm: 0.02 to 1.8 / at 100 cm: 0.02 to 2.0 - The rings are drawn following the international Landolt C standard formula as closely as possible - For measurements at 60 cm or more, we recommend two people: one holds the device, the other answers - Even without Premium, your last 7 records are kept on your device (never sent anywhere). Premium keeps up to 365 records with charts and CSV export - Ad-free [How to use] - Launch the app and set the distance from your eyes to the screen (10 cm to 100 cm) - Close one eye and tap the arrow button that matches the direction of the opening in the "C" [Notes] - The results of this app cannot be used as official health examination results - Stop using the app immediately if you feel unwell

1.Convenient and attentive visual inspection process to help users check their own visual acuity index at any time. 2 built-in local database, you can add more than one user to use. 3.Convenient record search function. 4.Easy of eyes care, to provide you with many small tips about eye and visual of life.