Specialising in Paediatric Vision Testing
Specialising in Paediatric Vision Testing

Sign in / Register   |    +44 (0)1442 823507

Home>Digital Tests, Vision Tests>Kay iSight Test Professional App

Kay iSight Test Professional App

For iPhones and iPads

NEW feature now available!
Remote Video Testing with your iPad


The Kay iSight Test Professional app lets you measure and record near and distant visual acuity in children from 18 months of age through to adults. It is simple and intuitive to use, making your testing quick and easy.

A new feature for the iPad is Remote Video Testing. It’s a simple way to test vision remotely. Use your iSight Pro iPad app shared through a video conferencing app at your desk to test anywhere in the world.

The app uses international standard letters and Kay Picture optotypes for young children and others with a learning disability. In addition, near reading text is provided as short paragraphs or single, high frequency words.

There is also a point of light fixation target plus 4 animated images and two static scenes.

Using a suitable Bluetooth mouse, the app can be operated remotely to test at distance. See a short demonstration here.

The Kay Picture Test is the only fully validated picture vision test with accurate, recognisable pictures and evidence-based crowding. This app is registered and CE marked as a medical device with MHRA.


  • Can be shared (iPad only) to another device for remote vision testing
  • Various testing distances from 33cm to 6 metres (3 metres on the phone)
  • Choice of letters or pictures for testing a range of abilities
  • Displays LogMAR notation, plus metric or imperial Snellen, or Decimal
  • Records and saves visual acuity results for each eye to a log
  • Offers various single, crowded and chart presentations
  • Reading text in 12 sizes from N48 to N5
  • Sentences of exactly 50 words to facilitate reading speed testing
  • Lock screen option on reading pages
  • Easy to increase and decrease the size displayed
  • Simple to refresh the optotypes or text on screen
  • Provides coloured, animated fixation targets to maintain interest and accommodation

The FREE setting provides a distance, letter test and new subscribers have a one-month free trial to test all the additional features before payment is taken.

You can cancel the subscription at any time during the introductory free period and pay nothing. If you wish to use the app after the free period, payment will be taken by iTunes.

Research articles:
The Redevelopment of the Kay Picture Test of Visual Acuity

JAMA Ophthalmol. 2021; doi: 10.1001/jamaophthalmol.2020.6177 Visual Acuity Testing for Telehealth Using Mobile Applications Benjamin J. Steren, BA; Benjamin Young, MD; Jessica Chow, MD


Business Manager

Apple Business Manager does not support subscription apps, so only the free version of iSight Pro is available to download.
However, we are working on providing an option to buy the iSight Pro app for centrally-managed Apple devices through Apple Business Manager. Please get in touch if you may be interested in this option.


Demo Videos


For a full overview of our terms and conditions of iSight Pro, please click here.


“Fabulous App! Kay pictures is a fabulous app. It is able to be set at multiple viewing distances and is ideal for use in our remote offices. We recently found that it could be used with a mouse from across the room. It is simple, intuitive and just plain works well.”
PA Doc, Lancaster

“Kay’s crowded picture testing using the iPad app has transformed our practice, we are so mobile and it is great for those children who usually would take a longer time to warm to you/testing!”
Laura, Senior Orthoptist, GCUH, Australia

You may also like…

Go to Top