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By Thomson Software Solutions

This app is only available on the App Store for iOS devices.


Thomson Software Solutions is the leading provider of software for eye care professionals in the UK and have users all over the world. This application joins a family of software for vision assessment and screening originally devised by Professor David Thomson.

iChart2000 exploits the superb graphics capabilities of the iPod Touch or iPhone to provide a wide range of vision assessment tools for eye care professionals (ophthalmologists, optometrists, orthoptists and opticians).

The tools are divided into four categories:

Near vision assessment:

By holding the iPhone at a normal reading distance, it can be used to assess a wide range of near vision functions including:

- Reading test (N5 to N18 - Adult and children's test)
- LogMAR reading test
- LogMAR near charts
- Task images (Maps, books, newspaper etc. to ensure the patient can perform these real world tasks)
- Binocular vision tests (fixation disparity, binocularity, suppression, stereopsis)
- Duochrome (dots, letters, rings)
- Amsler (positive and negative contrast, draw directly on charts)
- Fixation targets (clown, crosses, letters, cartoons)
- Miscellaneous (convergence, astigmatism, Maddox rod)

3 metre assessment:

View the iPhone from 3 metres and you can assess a wide range of distance vision functions. Ideal for home visits.

- LogMAR charts
- Single letter charts
- Children's visual acuity
- Duochrome (dots, letters, rings)
- Cross cylinder (dots and rings)
- UK number plate test for driving (actual number plate fonts and correct spacing)
- Fixation targets (clown slide show to use during retinoscopy for example)

Patient information:

Wide range of images and a video to help explain conditions to patients. Pan and zoom on all images and draw with your finger.

- Eye diagrams
- Eye disease (photographs of a wide range of anterior segment eye diseases)
- Front of the eye (images of the external eye)
- Retina (normal and abnormal fundi)
- Video


Use the toolkit to perform those tricky eye-related calculations.

- Visual acuity (convert between LogMAR, VAR, Snellen metres, Snellen ft, Resolution and Spatial frequency)
- LogMAR scorer (help with scoring a LogMAR chart)
- Vertex distance calculator
- Toric contact lens over-refraction calculator
- Transposition calculator

What's New in Version 2.4.1

- Bug fixes
- Improved iOS 8 support

iPhone Screenshots

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View in iTunes
  • £21.99
  • Category: Medical
  • Updated:
  • Version: 2.4.1
  • Size: 272 MB
  • Language: English
  • Developer:
You must be at least 17 years old to download this application.
  • Frequent/Intense Medical/Treatment Information

Compatibility: Requires iOS 5.1.1 or later. Compatible with iPhone, iPad and iPod touch.

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