Eye Charts

Name: Eye Charts
Price: 4.99 USD
Rating: 3.5 (29 reviews)
Author: zijian huang

check and track distant vision

$4.99

29 Ratings
Ages

13+
Years
Category

Medical
Developer

zijian huang
Language

AR
+ 19 More
Size

20.6
MB

Designed for children over the age of 6, parents with young children, and general practitioners, this eye chart app displays optically precise optotypes for accurate distance vision measurement. 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. 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. ETDRS 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 feet. 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. Notations： 1. Decimal (0.50) 2. Fraction (20/40) 3. LogMAR (0.30) with LogMAR scoring 4. Fraction (5/10) 5. Fraction (6/12) 6. MAR (2) with LogMAR scoring 7. VAS or VAR (85) with LogMAR scoring Test Modes: 1. Manual. 2. Auto scoring – Swipe gestures indicate correct or incorrect readings, and the app calculates scores. Enable "Record Scores" in Settings to track visual acuity progression, with support for multiple test subjects. “Visual Acuity Testing for Telehealth Using Mobile Applications,” published in JAMA Ophthalmology on https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7809609/ validated that this app — formerly known as Visual Acuity Charts — is sufficiently accurate for clinical use. 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.

Ratings & Reviews

3.5

out of 5

29 Ratings

Profiting off of a virus
03/27/2020

Emem27
App was free a few days ago now patients have to pay because they need it because of covid19Pretty bad and lacking human decency

Developer Response
There had been a 1 week promotion during which the purchase price was zero. App Store does NOT allow a free app to become a paid app, and this app has been a paid app. And you may request a refund from App Store.
Profiting off of a virus
03/27/2020

Emem27

App was free a few days ago now patients have to pay because they need it because of covid19Pretty bad and lacking human decency
Developer Response 09/12/2023
There had been a 1 week promotion during which the purchase price was zero. App Store does NOT allow a free app to become a paid app, and this app has been a paid app. And you may request a refund from App Store.
Shame on you for profiteering during COVID pandemic!
03/27/2020

Reviewforyou*
Profiteering during this crisis when people and companies should be trying to help is unconscionable. Many families are unemployed due to the COVID pandemic and cannot afford to spend valuable resources on an app at this time. Be part of the solution, not the problem at this difficult time. Shame on you! This app was free until just a few days ago. During this COVID crisis, most eye care providers are resorting to telemedicine to monitor patients who need to be followed. This app is useful for visual acuity testing, especially in children, since it includes the Lea and HOTV charts and could be very helpful in the setting of telemedicine. It had been a free app until just a few days ago, when all of a sudden, in the midst of the COVID-19 pandemic, a $4.99 fee was charged. This fee should be removed or at least waived at this time—just as quickly as it was added!

Developer Response
There had been a 1 week promotion during which the purchase price was zero. App Store does NOT allow a free app to become a paid app, and this app has been a paid app. And you may request a refund from App Store.
Shame on you for profiteering during COVID pandemic!
03/27/2020

Reviewforyou*

Profiteering during this crisis when people and companies should be trying to help is unconscionable. Many families are unemployed due to the COVID pandemic and cannot afford to spend valuable resources on an app at this time. Be part of the solution, not the problem at this difficult time. Shame on you! This app was free until just a few days ago. During this COVID crisis, most eye care providers are resorting to telemedicine to monitor patients who need to be followed. This app is useful for visual acuity testing, especially in children, since it includes the Lea and HOTV charts and could be very helpful in the setting of telemedicine. It had been a free app until just a few days ago, when all of a sudden, in the midst of the COVID-19 pandemic, a $4.99 fee was charged. This fee should be removed or at least waived at this time—just as quickly as it was added!
Developer Response 09/12/2023
There had been a 1 week promotion during which the purchase price was zero. App Store does NOT allow a free app to become a paid app, and this app has been a paid app. And you may request a refund from App Store.
Better than Snellen chart on paper
02/03/2019

WilliamsPiggy
I have been wondering how come the top row of the Snellen chart could be suitable for both 20 feet and 6 meters, as marked in paper base Snellen charts, since 20 feet is 6.096 meters. This app actually gives slightly larger optotype for a 20 feet distance than for a 6 meters distance. The UI design is mobile friendly. The hint is brief, so it took me some fail and try to figure out how to use. After all, intuitive and smooth.
Better than Snellen chart on paper
02/03/2019

WilliamsPiggy

I have been wondering how come the top row of the Snellen chart could be suitable for both 20 feet and 6 meters, as marked in paper base Snellen charts, since 20 feet is 6.096 meters. This app actually gives slightly larger optotype for a 20 feet distance than for a 6 meters distance. The UI design is mobile friendly. The hint is brief, so it took me some fail and try to figure out how to use. After all, intuitive and smooth.
This was free - now it’s not.
03/30/2020

A-Aron2020
Update #2: Why are you reporting my concern to Apple support? My issue is NOT about MY purchase experience. My issue is about the many other patients who will need this app in the near future. Give THEM a break. Reduce the price for THEM. HELP THEM, not me. ================Update: If it was just a temporary 1 week free trial, why not extend that for several more weeks to help people out? Or maybe reduce the price to $0.99? Seems like that would be reasonable if you are restricted from changing it to free. ================Hundreds of patients will now suffer as they can’t afford spending money on a single visual acuity check. Shame on the developer for taking advantage of the disadvantaged. Hold down on the comment and like it so it rises to the top of most helpful. Time to look for another option.

Developer Response
There had been a 1 week promotion during which the purchase price was zero. App Store does NOT allow a free app to become a paid app, and this app has been a paid app. And you may request a refund from App Store.
This was free - now it’s not.
03/30/2020

A-Aron2020

Update #2: Why are you reporting my concern to Apple support? My issue is NOT about MY purchase experience. My issue is about the many other patients who will need this app in the near future. Give THEM a break. Reduce the price for THEM. HELP THEM, not me. ================Update: If it was just a temporary 1 week free trial, why not extend that for several more weeks to help people out? Or maybe reduce the price to $0.99? Seems like that would be reasonable if you are restricted from changing it to free. ================Hundreds of patients will now suffer as they can’t afford spending money on a single visual acuity check. Shame on the developer for taking advantage of the disadvantaged. Hold down on the comment and like it so it rises to the top of most helpful. Time to look for another option.
Developer Response 09/12/2023
There had been a 1 week promotion during which the purchase price was zero. App Store does NOT allow a free app to become a paid app, and this app has been a paid app. And you may request a refund from App Store.

1. Support iPhone 17, iPhone Pro, iPhone Pro Max and iPhone Air.

Version 3.4.1

Sep 28

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

Information

Seller
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Category
Compatibility
Languages
Age Rating
Copyright

Developer Website

Privacy Policy

Supports

Family Sharing

Up to six family members can use this app with Family Sharing enabled.

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Eye Charts

check and track distant vision

Ratings & Reviews

What’s New

Version 3.4.1

App Privacy

Data Not Collected

Accessibility

Information

Supports

Family Sharing

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