Eye Chart Pro 4+

Name: Eye Chart Pro
Author: Dok LLC

Clinically evaluated VA test

Dok LLC

Designed for iPad

- Free
- Offers In-App Purchases

iPad Screenshots

Description

**A Top Downloaded Medical App - Over 500,000 Installs**

Eye Chart Pro is a clinically-reviewed, randomizable visual acuity exam. It’s remote-controlled, pleasant for patients and providers, and FREE. Similar chart projector functionality usually costs over $1000. Check out the last screenshot to see more information on the clinical reviews in peer-reviewed publications and their conclusions.

Useful for:
- Triaging
- House visits
- Patients who have memorized the office chart

Features:
- Randomizable Snellen Chart
- Randomizable Tumbling E Chart
- Randomize the whole chart or one line at a time
- Smooth interface with animations
- Basic remote
- Metric / Feet functionality

Description:

Eye Chart Pro is a generator for randomized Snellen and Tumbling E charts to offer a rough but useful screen of visual acuity. Simply press a button to randomize the entire eye chart, or touch an individual line of the chart to randomize that line. Tap another button to toggle between Snellen and Tumbling E charts.

Eye care professionals around the world use Snellen Eye Charts to measure visual acuity. However, patients often memorize the classic Snellen chart, leading to less accurate vision measurements. Enter Eye Chart Pro! Though this unique, notebook sized randomizable eye chart should not be used as a primary visual acuity measuring tool, it can provide a handy rough vision screen when a chart is not available, or it can be used to complement static, wall-based Snellen charts.

Eye Chart Pro was made with the best of intentions, and we hope to continue improving it. Your feedback is appreciated!

Here is a summary of clinical evaluations we have found:

ETDRS Chart on Eye Chart Pro on iPad: “Validation of the visual acuity iPad app Eye Chart Pro compared to the standard Early Treatment Diabetic Retinopathy Study chart in a low-vision population” Journal of Telemedicine and Telecare.
Conclusion (summary quote): “The ETDRS chart function on the Eye Chart Pro application can reliably measure VA across a range, from normally sighted patients to those with low vision.”

Sloan Chart on Eye Chart Pro on iPad: “The validity of visual acuity assessment using mobile technology devices in the primary care setting.” Australian Family Physician.
Conclusion (summary quote): “The high level of agreement of visual acuity results between the Snellen wall chart and both mobile technology devices suggests that clinicians can use this technology with confidence in the primary care setting.”

Tumbling E Chart on Eye Chart Pro on iPad: “A Pilot Trial of the Ipad Tablet Computer as a Portable Device for Visual Acuity Testing” Journal of Telemedicine and Telecare.

Conclusion (summary quote): “Bland-Altman analysis revealed a mean difference (bias) of 0.02 logMAR units between the VA results from the iPad chart and the light-box chart, with 95% limits of agreement of -0.14 to 0.19.”

We are not responsible for the above studies, so please check out the papers above if you have further questions.

Nov 15, 2024

Version 3.0

Support for more iPad devices

What size iPad is this for?

I loaded it on a small iPad and a larger iPad Pro. The chart fills the screen on each which, obviously cannot be correct since they both say to use it at 8’. Either it must adjust the letters to the size of the screen or adjust the recommended viewing distance to compensate for the size of the letters. Looks like they are about the right size on the smaller iPad Air and much too larger (Warranting a viewing distance of perhaps 11 or 12 feet rather than 8) on the large iPad pro. If the app runs on multiple form factor devices it needs to compensate or at least alert users of an issue. Barring that issue, the free version does everything I would expect, but that issue is significant.

Revolutionary

I am a neurologist and use EyeChart Professional on my iPad quite frequently seeing patients on rounds and in the clinic. This newest version of Eyechart has several features including the ability to test acuity at a variety of distances from the patient. I can hold it 10 feet from the patient inside the clinic and easily switch to 4 feet when I’m at the foot of an inpatient bed. You can also isolate rows for testing acuity, not to mention limitless randomization, which is particularly useful as patients can subconsciously familiarize the fixed letters on hand cards or wall charts, throwing off the accuracy of repeat testing. Though I mainly use the Snellen chart for acuity and the Amsler grid for visual field defects, there are numerous advanced charts for optometrists and ophthalmologists. It would not surprise me to see an iPad with this application on the wall of eye doctors’ offices, as this app has countless more features and versatility than the anachronistic wall projector, and the long term cost would be less (e.g. several hundred dollars to replace a projector bulb). I strongly recommend this app for any physician who does visual screening, and certainly for eye specialists. It is simple enough for non-medical individuals to use to test their own vision as well.

Very nice medical app.

I showed this to some of my colleagues in the eye clinic and they absolutely loved it. Our only complaint was that it as well as the paid app did not include at least the Allen and/or Lea picture eye chart. Which are essential when you work with, as I do, young children.

The developer, Dok LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

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

Information

Seller

Manu Lakkur

Size

30.8 MB