Eye Chart HD 3.0

The "Eye Chart HD" application presents a user-friendly, clinically evaluated visual acuity screening tool designed for various healthcare settings. With over one million downloads among iOS users, this app utilizes mobile electronic eye charts to facilitate efficient vision assessments. The following details outline its clinical evaluations and potential applications.

Applications Include:

• Triaging
• House visits
• Hospital rounds
• Emergency rooms
• Schools
• Patients familiar with standard office charts

"Eye Chart HD" functions as a portable visual screener featuring randomized Snellen, Tumbling E, and additional charts, providing a preliminary yet useful assessment of visual acuity. Users can easily randomize the eye chart by pressing a button or touch an individual line for targeted randomization. The chart selector is efficiently accessible via a right swipe.

While Snellen Eye Charts have long been the standard for measuring visual acuity, there is a notable concern regarding patients memorizing these charts, potentially compromising measurement accuracy. "Eye Chart HD" addresses this issue by offering a pocket-sized, randomizable alternative that should not replace traditional methods but serves as an effective supplementary tool when standard charts are not available.

Subscription Details:

In addition to complimentary features, "Eye Chart HD" provides subscription-based access to exclusive tools, such as the Randomizable Near Vision Chart, Line Isolation, Amsler Grid, and Single Optotype Charts for $2.99 per month. Users can purchase this subscription within the app, which operates on an auto-renewing basis for convenience until canceled. For inquiries regarding the subscription, users may contact [email protected].

For transparency and further evaluation, we present the following clinical studies conducted on "Eye Chart HD":

1. Snellen & Tumbling E Charts on Eye Chart HD

   Study: “Comparison of Visual Acuity Measurement Using Three Methods: Standard ETDRS Chart, Near Chart and a Smartphone-Based Eye Chart Application” Clinical Ophthalmology.

   Conclusion: “VA measurements with the Near Chart and smartphone-based Eye Chart application corresponded well to the standard ETDRS chart, suggesting potential utility of alternative portable VA tests for in-office or remote vision monitoring during the COVID-19 pandemic.”

2. Sloan Chart on Eye Chart HD

   Study: “Does the EyeChart App for iPhones Give Comparable Measurements to Traditional Visual Acuity Charts?” The British and Irish Orthoptic Journal.

   Conclusion: “VA scores obtained from the EyeChart app were comparable to results from the gold-standard ETDRS chart in a healthy young adult population. However, additional large-scale studies are needed across diverse patient populations.”

3. Snellen Chart on Eye Chart HD

   Study: “Comparative Study of the Snellen iPad App versus Traditional Light Box Snellen Chart in Distance Visual Acuity” International Journal of Ophthalmology and Clinical Research.

   Conclusion: “Results from the Eye Chart HD app on an iPad Mini 2 closely aligned with those from traditional light-box Snellen Charts used in outpatient settings.”

4. Rapid Vision Screening Chart on Eye Chart HD

   Study: “Assessment of a rapid method to determine approximate visual acuity in large surveys and other such settings.” American Journal of Ophthalmology.

   Conclusion: “An iPod application requiring approximately one minute for testing offers an objective, portable, rapid, and cost-effective method for determining approximate VA efficiently in large surveys.”