Age Rating
Visual Acuity Charts Screenshots
About Visual Acuity Charts
Prevention is better than cure. Designed for children older than 6, parents with young children, and general practitioners, this eyechart app displays optically precise optotypes of eye charts for you to measure distance vision accurately in order to detect myopia early, so you can take preventive measures and seek help from medical professional early to prevent pseudomyopia from progressing to myopia, or prevent nearsightedness from getting worse.
Supported Eye Charts:
1. Snellen, with C, D, E, F, H, K, N, P, R, U V and Z, as defined in BS 4274-1:2003.
2. Tumbling E. Option to have shorter middle arm.
3. Landolt C.
4. ETDRS, with C, D, H, K, N, O, R, S, V, and Z.
5. European-wide, with H, K, O, E, P, X, B, T, M and A.
6. HOTV.
7. Numbers.
8. Shapes.
Test Distances:
* 6, 5, 4, 3, and 2 meters predefined.
* 20, 15, 12, 10, 6 feet predefined.
* Custom distance 0.5 - 30 meters, or 1.6 - 98 ft.
Scenarios:
1. "Doctor" and "Patient".
2. Self-diagnosis with a mirror. With one eye covered by an eye patch and holding the device near the shoulder, you stand in front of a typical bathroom mirror using the mirror mode of the app and having the device's screen facing the mirror. The actual test distance is 2 times of the distance between you and the mirror.
3. Self-diagnosis with a Bluetooth keyboard. After putting the device standing a few meters away on a table, you use the keyboard's direction keys to indicate what your read.
Notations：
1. Decimal (0.50)
2. Fraction (20/40)
3. LogMAR (0.30)
4. Fraction (5/10)
5. Fraction (6/12)
6. MAR (2)
7. VAS or VAR (85)
Test Modes:
1. Manual.
2. Auto scoring In Auto scoring, you use the swiping gestures to indicate correct readings or wrong readings, and the app calculates the score. Through enabling “Record Scores” in Settings, you can keep track of the progression of your visual acuity. Visual acuity scores of multiple testees could be recorded.
“Visual Acuity Testing for Telehealth Using Mobile Applications” published in JAMA Ophthalmology on https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7809609/ indicates Visual Acuity Charts is the most accurate among 10 apps on iPhones being tested.
Checking for myopia takes several procedures and the first step is often to test distant visual acuity through a visual acuity chart. And the decrement of visual acuity may indicate the development of myopia.
Disclaimer:
While this app may replace eye charts in print, however it CANNOT replace doctors and optometrists who carry out comprehensive eye exam for your basic eye health. The eye chart app does not test strabismus, esotropia, exotropia, hyperopia and astigmatism and which are common early vision conditions. Please visit optometrists regularly and seek help from medical professional at early signs of visual acuity problems.
Supported Eye Charts:
1. Snellen, with C, D, E, F, H, K, N, P, R, U V and Z, as defined in BS 4274-1:2003.
2. Tumbling E. Option to have shorter middle arm.
3. Landolt C.
4. ETDRS, with C, D, H, K, N, O, R, S, V, and Z.
5. European-wide, with H, K, O, E, P, X, B, T, M and A.
6. HOTV.
7. Numbers.
8. Shapes.
Test Distances:
* 6, 5, 4, 3, and 2 meters predefined.
* 20, 15, 12, 10, 6 feet predefined.
* Custom distance 0.5 - 30 meters, or 1.6 - 98 ft.
Scenarios:
1. "Doctor" and "Patient".
2. Self-diagnosis with a mirror. With one eye covered by an eye patch and holding the device near the shoulder, you stand in front of a typical bathroom mirror using the mirror mode of the app and having the device's screen facing the mirror. The actual test distance is 2 times of the distance between you and the mirror.
3. Self-diagnosis with a Bluetooth keyboard. After putting the device standing a few meters away on a table, you use the keyboard's direction keys to indicate what your read.
Notations：
1. Decimal (0.50)
2. Fraction (20/40)
3. LogMAR (0.30)
4. Fraction (5/10)
5. Fraction (6/12)
6. MAR (2)
7. VAS or VAR (85)
Test Modes:
1. Manual.
2. Auto scoring In Auto scoring, you use the swiping gestures to indicate correct readings or wrong readings, and the app calculates the score. Through enabling “Record Scores” in Settings, you can keep track of the progression of your visual acuity. Visual acuity scores of multiple testees could be recorded.
“Visual Acuity Testing for Telehealth Using Mobile Applications” published in JAMA Ophthalmology on https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7809609/ indicates Visual Acuity Charts is the most accurate among 10 apps on iPhones being tested.
Checking for myopia takes several procedures and the first step is often to test distant visual acuity through a visual acuity chart. And the decrement of visual acuity may indicate the development of myopia.
Disclaimer:
While this app may replace eye charts in print, however it CANNOT replace doctors and optometrists who carry out comprehensive eye exam for your basic eye health. The eye chart app does not test strabismus, esotropia, exotropia, hyperopia and astigmatism and which are common early vision conditions. Please visit optometrists regularly and seek help from medical professional at early signs of visual acuity problems.
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What's New in the Latest Version 3.1
Last updated on Dec 13, 2023
Old Versions
1. Display details of scores.
2. Display and share trend of visual acuity.
3. Share all scores as CSV file.
2. Display and share trend of visual acuity.
3. Share all scores as CSV file.
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Version History
3.1
Dec 13, 2023
1. Display details of scores.
2. Display and share trend of visual acuity.
3. Share all scores as CSV file.
2. Display and share trend of visual acuity.
3. Share all scores as CSV file.
3.0
Oct 9, 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.
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.
2.9
Sep 28, 2023
1. Shapes chart: Circle, Cross, Triangle, Square and Pentagon.
2. Support iPhone 15.
2. Support iPhone 15.
2.8.3
Jul 4, 2023
Fixed the scores screen in Dark Mode.
2.8.2
Sep 20, 2022
1. Support iPhone 14, Plus, Pro and Pro Max.
2.8.1
Jun 29, 2022
* Support iPhone SE 3rd Generation and iPad Air 5th Generation.
2.8
Oct 26, 2021
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. 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.
2.7.1
Sep 20, 2021
1. Support iPhone 13 series.
2. Support iPad Pro (11-inch) 3rd generation and iPad Pro (12.9-inch) 5th generation.
2. Support iPad Pro (11-inch) 3rd generation and iPad Pro (12.9-inch) 5th generation.
2.7
Apr 30, 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.
* The Visual Acuity Scores screen has help content available.
2.6.1
Jan 15, 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
Oct 26, 2020
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. Obtain supports for new iPhone or iPad models through calling home service, if the app is not updated.
2.5.2
May 16, 2020
1. Bug fixed: The eyesight testing screens do not respond to swipe gestures on iPhone/iPad with iOS 13.4.1.
2.5.1
May 4, 2020
1. Bug fixed: on iPhone when inputting Custom Distance, the value is not persisted.
2. Better display in iOS Dark Appearance.
2. Better display in iOS Dark Appearance.
2.5
Apr 28, 2020
1. Support iPhone SE 2nd Generation.
2. For the latest models of iPhone or iPad which this app hasn't yet supported, you may be prompted to input PPI according to the technical specification of your iPhone or iPad.
3. If Tumbling E Chart is the current chart, you may choose E with shorter middle arm through Settings.
2. For the latest models of iPhone or iPad which this app hasn't yet supported, you may be prompted to input PPI according to the technical specification of your iPhone or iPad.
3. If Tumbling E Chart is the current chart, you may choose E with shorter middle arm through Settings.
2.3
Apr 5, 2020
1. Option for optotype E of Tumbling E Chart to have shorter middle arm.
2. Startup notation at Decimal 0.2 or LogMar0.7 or VAS 65 or Fraction 6/30.
3. Support iPad Pro 12.9-inch 4th generation, iPad Pro 11-inch 2nd generation and iPad 10.2 inch 7th generation.
2. Startup notation at Decimal 0.2 or LogMar0.7 or VAS 65 or Fraction 6/30.
3. Support iPad Pro 12.9-inch 4th generation, iPad Pro 11-inch 2nd generation and iPad 10.2 inch 7th generation.
2.2.5
Apr 2, 2020
Maintenance build.
2.2.3
Sep 24, 2019
Support iPhone 11.
2.2.2
Aug 14, 2019
1. On iPad, if "Record Scores" is enabled, the Scores button will appear in the toolbar, while on iPhone, a menu button appears in the toolbar for Scores, Settings and About.
2. Faster startup.
2. Faster startup.
2.2.1
Jul 9, 2019
1. Support latest iPad models released in 2019.
2.2
May 17, 2019
1. Support self-diagnosis with a Bluetooth keyboard. With eye charts that use letters or numbers, you may press the respective letter keys or number keys to signal right responses. With Tumbling E Chart and Landolt C Chart, you may use arrow keys or QWEADZXC of the QWERTY keyboard layout to signal right responses, similar to the way of swiping the screen.
2. The textual content of this app had been translated into these languages from English:
Spanish/Español (es)
Italian/Italiano (it)
Russian/русский (ru)
Hindi/हिन्दी, हिंदी, (hi)
Portuguese/Português (pt)
Chinese Simplified/简体中文 (zh-Hans)
Chinese Traditional/繁體中文 (zh-Hant)
Japanese/日本語 (ja)
Korean/한국어 (ko)
Thai/ไทย (th)
Indonesian/bahasa Indonesia (id)
2. The textual content of this app had been translated into these languages from English:
Spanish/Español (es)
Italian/Italiano (it)
Russian/русский (ru)
Hindi/हिन्दी, हिंदी, (hi)
Portuguese/Português (pt)
Chinese Simplified/简体中文 (zh-Hans)
Chinese Traditional/繁體中文 (zh-Hant)
Japanese/日本語 (ja)
Korean/한국어 (ko)
Thai/ไทย (th)
Indonesian/bahasa Indonesia (id)
2.1.1
Apr 18, 2019
Bug fixed: After the app falls into sleep then wakes up, the help content in the default screen may become for Autoplay.
2.1
Apr 15, 2019
Improved the hint and help system.
2.0.1
Apr 4, 2019
1. Bug fixed: date in the scores was displayed as UTC date. It should be local date.
2. Through enabling “Record Scores” in Settings, you can keep track of the progression of your visual acuity. Visual acuity scores of multiple testees could be recorded. Visual Acuity Score (VAS) is an inversion of the logMAR scale, based on VAS=100-50xlogMAR. It is more intuitive since higher values indicate better visual acuity.
3. In the scores review, score 100 in blue indicates the reference standard, scores above 100 in green indicates no myopia, while scores below 100 in red may indicate myopia.
2. Through enabling “Record Scores” in Settings, you can keep track of the progression of your visual acuity. Visual acuity scores of multiple testees could be recorded. Visual Acuity Score (VAS) is an inversion of the logMAR scale, based on VAS=100-50xlogMAR. It is more intuitive since higher values indicate better visual acuity.
3. In the scores review, score 100 in blue indicates the reference standard, scores above 100 in green indicates no myopia, while scores below 100 in red may indicate myopia.
2.0
Mar 31, 2019
Through enabling “Record Scores” in Settings, you can keep track of the progression of your visual acuity. Visual acuity scores of multiple testees could be recorded. Visual Acuity Score (VAS) is an inversion of the logMAR scale, based on VAS=100-50xlogMAR. It is more intuitive since higher values indicate better visual acuity.
In the scores review, score 100 in blue indicates the reference standard, scores above 100 in green indicates no myopia, while scores below 100 in red may indicate myopia.
In the scores review, score 100 in blue indicates the reference standard, scores above 100 in green indicates no myopia, while scores below 100 in red may indicate myopia.
1.5
Mar 7, 2019
1. Short haptics vibration (for iPhone 6s or above) or short notification sound when current optotype is changed successfully, if the voice hint is off. This gives you feedback if you as a "doctor" is not looking at the screen but the response from the "patient".
Visual Acuity Charts Price
Today:
$4.99
Lowest:
$3.99
Highest:
$4.99
Visual Acuity Charts FAQ
Click here to learn how to download Visual Acuity Charts in restricted country or region.
Check the following list to see the minimum requirements of Visual Acuity Charts.
iPhone
Requires iOS 11.1 or later.
iPad
Requires iPadOS 11.1 or later.
iPod touch
Requires iOS 11.1 or later.
Visual Acuity Charts supports Hindi, Indonesian, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese
