Eye Charts 3.5.1 - App Store

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About Eye Charts

Eye Charts is a professionally designed visual acuity testing app that makes it easy to accurately check, record, and track vision over time in children aged 6 and above, whether you are a parent monitoring a child’s...

Eye Charts is a professionally designed visual acuity testing app that makes it easy to accurately check, record, and track vision over time in children aged 6 and above, whether you are a parent monitoring a child’s eyesight at home or a healthcare professional performing routine screening in practice. Early detection of myopia allows you to take preventive action, seek medical advice promptly, and prevent pseudomyopia from worsening into myopia or stop nearsightedness from deteriorating further. DESIGNED TO REDUCE VARIABILITY Unlike paper charts that fade, warp, or become memorized over time, Eye Charts presents optically accurate optotypes that are randomized for every test. This helps ensure more meaningful results for repeated testing at home, in schools, clinics, or telehealth settings. Supported charts include: * Snellen * ETDRS * Landolt C * Tumbling E * HOTV * Numbers * Shapes The charts use LogMAR scaling of letter size across rows, and support multiple visual acuity notations for scoring, including: Fraction, LogMAR, MAR, Decimal and VAS. Flexible test distances allow accurate use in small rooms, hallways, or ad‑hoc spaces. Displayed on iOS and Android devices, Eye Charts is self‑illuminated, so the chart’s visibility does not depend on room lighting or weather. Screen brightness is adjustable and can be set appropriately for longer testing distances such as 6 meters. Scenarios: 1. Doctor and Patient. 2. Self-diagnosis using a mirror - Stand in front of a mirror with the app in mirror mode, wearing an eye patch over one eye. The effective test distance is twice the distance between you and the mirror. 3. Self-diagnosis using a Bluetooth keyboard - Place the device a few meters away on a table, and use the keyboard arrow keys to indicate what you can read. SEE TRENDS, NOT JUST SNAPSHOTS Test results can be recorded for individual subjects and visualized over time using simple line graphs, making it easier to identify: * Gradual changes in vision * Stability after intervention This longitudinal view is valuable for parents monitoring children’s eyesight and for clinicians tracking changes across visits. INDEPENDENTLY EVALUATED ACCURACY Eye Charts was previously published as Visual Acuity Charts. Under that name, it was independently evaluated in a peer‑reviewed academic study published in JAMA Ophthalmology and available via PubMed Central on https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7809609/. In that study, researchers objectively compared multiple iPhone‑based visual acuity apps by physically measuring optotype accuracy across devices. Visual Acuity Charts demonstrated the lowest measurement error among the apps evaluated, making it the most accurate app tested in that comparison. Myopia detection involves several steps, with distance visual acuity testing often being the first. A decline in visual acuity may indicate the onset of myopia, enabling early intervention. DISCLAIMER: While this app may replace printed eye charts, it CANNOT replace doctors or optometrists who perform comprehensive eye exams essential for maintaining eye health. The app does not test for strabismus, esotropia, exotropia, hyperopia, or astigmatism-common early vision conditions. Please consult an optometrist regularly and seek professional medical advice at the first signs of visual acuity issues.

Version History 1. Support iPhone 17e, iPad Air (11-inch), iPad Pro (13-inch). 2. Target iOS 26.2. 3.5.1 Apr 18 1. Added support for the 2025 iPad Pro models (11‑inch and 13‑inch). 2. Target iOS 26. 3. Fixed several minor bugs. 3.5 Jan 2 1. Support iPhone 17, iPhone Pro, iPhone Pro Max and iPhone Air. 3.4.1 09/28/2025 1. Most built-in help contents are refined. 2. When the visual acuity notation is LogMAR, MAR or VAS, the scoring of the assessment is LogMAR Scoring. 3.4 08/27/2025 * Settings rearranged along with updated help v3.3.4 07/30/2025 * Bug fixed: on iPhones featuring small screen, the optional menu may not appear occasionally. v3.3.3 06/25/2025 * Support Arabic and Hebrew. * Bug fixed: In some locales of Chinese, the app could not pick the correct translation automatically. v3.3.2 05/30/2025 * Support iPhone 16e, iPad Air 11-inch (M3), iPad Air 13-inch (M3) and iPad (A16) v3.3.1 04/11/2025 1. In Settings, support switching UI language without altering the preferred language of the device, while by default (System) the app is matching the preferred language with available language resources. 2. Add language resources for Filipino, French, German, Malay, Polish, Turkish and Vietnamese. 3. Support iPad Mini (A17 Pro). v3.3 01/02/2025 * Bug fixed: After disabling app brightness, the app does not recover the device brightness. * Bug fixed: Haptic and completion sound are not presented for swipes during eyesight checking. 3.2.1 09/29/2024 1. More comprehensive support for Bluetooth keyboards. Please refer to https://visualacuity.info/bluetooth-keyboard . 2. Support iPhon 16, iPhone 16 Plus, iPhone 16 Pro and iPhone 16 Pro Max. 3.2 UI Overhaul 09/17/2024 Support iPad Air 2024 (M2), and iPad Pro 2024 (M4). 3.1.1 06/15/2024 1. Display details of scores. 2. Display and share trend of visual acuity. 3. Share all scores as CSV file. 3.1 12/13/2023 Share the test results of autoscoring with other apps like: 1. Messages/SMS 2. Email apps like Gmail 3. Instant messengers like WhatsApp, Signal, and Skype etc. 4. Cloud storages like iCloud Drive 5. Clipboard 6. Any app that can receive text, HTML file or JSON file from the other apps. You may use such features to send the test results to medical professionals during a telemedicine / telehealth session. 3.0 10/09/2023 1. Shapes chart: Circle, Cross, Triangle, Square and Pentagon. 2. Support iPhone 15. 2.9 09/28/2023 Fixed the scores screen in Dark Mode. 2.8.3 07/04/2023 1. Support iPhone 14, Plus, Pro and Pro Max. 2.8.2 09/20/2022 * Support iPhone SE 3rd Generation and iPad Air 5th Generation. 2.8.1 06/29/2022 1. Setting for displaying multiple optotypes of current row. 2. When multiple optotypes are enabled in current row, wipe left or right or press the Next button to shuffle optotypes. 3. In Auto Scoring mode, the testee should read the central optotype. 4. Supports iPad 9th generation and iPad Mini 6th generation. 2.8 10/26/2021 1. Support iPhone 13 series. 2. Support iPad Pro (11-inch) 3rd generation and iPad Pro (12.9-inch) 5th generation. 2.7.1 09/20/2021 * When Record Scores is enabled in Settings, in the Visual Acuity Scores screen you may copy the scores of current patient to clipboard, then you may paste the scores to a drafted Email message or instant message. This may be handy for a telemedicine / telehealth session when the medical practitioner asks for VA scores. * The Visual Acuity Scores screen has help content available. 2.7 04/30/2021 1. Randomize the sequences of optotypes before each test with autoplay, in case that the next test subject may memorize the sequences, while the app randomizes the sequences during startup. 2.6.1 01/15/2021 1. Support iPhone 12, iPad 8, iPad Pro 4, and iPad Air 4. 2. Obtain supports for new iPhone or iPad models through calling home service, if the app is not updated. 2.6 10/26/2020 1. Bug fixed: The eyesight testing screens do not respond to swipe gestures on iPhone/iPad with iOS 13.4.1. 2.5.2 05/16/2020 1. Bug fixed: on iPhone when inputting Custom Distance, the value is not persisted. 2. Better display in iOS Dark Appearance. 2.5.1 05/04/2020

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Previous Versions

Here you can find the changelog of Eye Charts since it was posted on our website on 2025-04-12 10:54:09. The latest version is 3.5.1 and it was updated on 2026-06-10 20:38:18. See below the changes in each version.

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