iPhone Screenshots


**The best randomizable iPhone Snellen and Tumbling E chart generator on the AppStore!!**
Over 500,000 people have downloaded Dok's mobile electronic eye charts. If you're a doctor or nurse, try this free preview out!

Useful for:

- Triaging
- House visits
- Patients who have memorized the office chart

- Preview of randomizable Snellen Chart
- Preview of randomizable Tumbling E chart
- Randomize the whole chart or one line at a time
- Smooth interface with animations


Random Eye Chart is a generator for randomized Snellen and Tumbling E charts to offer a rough but useful screen of visual acuity. Simply tap the image of the die to randomize the entire eye chart, or touch an individual line of the chart to randomize that line. Tap a single 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 Random Eye Chart! Though this unique, pocket sized randomized 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.

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

Ratings and Reviews

2.8 out of 5
45 Ratings
45 Ratings
Samobi ,

Handy in the clinic and on the go

I think this is pretty similar to Random Eye Chart Generator... Anyhow, these Dok Eye Chart apps are really handy and I've upgraded a couple times -- now to Random Eye Chart! As someone who transitions from the wards to clinic a lot (I'm a resident), I find it's a great app to keep in my medical tool belt. I distinctly remember treating an inpatient with an exacerbation of Neuromyelitis Optica. We were following her with serial visual acuity examinations. The changing Snellen chart provided not only an accurate sense of her disease progression but always got a little giggle too. Can't ask for more than that! An A+ as usual for Dok's apps.

highway1strat ,

Simple and practical

I'm not in the medical field but this is still quite a nifty tool to tell if my perscription needs an update. Easy to use and practcal.


Manu Lakkur
182.3 KB
Requires iOS 3.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2010 Dok LLC
In-App Purchases
  1. "Infinite Snellen and E Chart Randomization Package" $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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