Snellen test
Oleg Drobyshev
About this app
- Age 10
- Updated Sep 27, 2024
- OS IOS
Editor reviews
Snellen test is a vision test app that helps you check visual acuity at home or in the clinic using a calibrated Snellen chart. It is designed for quick screening, easy tracking, and clear results in 20/20 or 6/6 formats.
Core features include precise distance and screen calibration for reliable results, multiple chart modes such as letters, Tumbling E, Landolt C, and kid-friendly symbols with randomized lines to prevent memorization, and result logging with trend charts, reminders, and multi-user profiles for families or clinics. Ideal for eye health monitoring, pre-appointment checks, and routine vision screening. Keywords include vision test app, Snellen chart, visual acuity, eye exam at home, medical, health tracker. This app is for screening and does not replace a professional eye examination.
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How to use:
1. Download and open the app, then complete the on-screen calibration by entering your screen size and selecting a testing distance such as 10 or 20 feet, or 3 to 6 meters.
2. Create a profile, choose the eye to test, and select a chart mode such as letters, Tumbling E, Landolt C, or symbols for children.
3. Place the device at the chosen distance, set screen brightness to high, and ensure good lighting and a clear line of sight.
4. Cover one eye, read the line shown, and tap to indicate correct or incorrect responses while the app adjusts line size automatically.
5. Review your result in 20/20 or 6/6, save it to track changes over time, repeat for the other eye, and optionally export or share the report. For screening only; consult an eye care professional for diagnosis or prescriptions.