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Vision Inspector Pro


Vision Inspector ProProduct description

The Vision Inspector Pro is a digital eye chart to test your patient's visual acuity and contrast sensitivity.  The software has been developed by Gerard C. de Wit, PhD, certified medical physicist (specialized in the visual system).


The Vision Inspector Pro has been designed based on three main principles:

  • It is accurate
  • It is simple to use (yet comprehensive)
  • It is clinically useful

VIP eye chart setup


Vision Inspector Pro:

Eye charts specially developed for low vision rehabilitation clinics.

Selected product features

  • High contrast visual acuity testing
  • Low contrast visual acuity testing
      ( 25%, 10%, 5%, 2.5%, 1.25%, 0.6% )
  • Visual acuity range:
       2.5 ... 0.016 (1/60)  (decimal)
       -0.4 ... 1.8               (logMAR)
  • Validated optotypes: Sloan, E, Landolt
    Note: Gerard de Wit, Ph.D., the owner of Optical Diagnostics, has also been working on designing and validating a new set of numbers and symbols optotypes.  As soon as these are published for general use in the scientific literature, these optotypes will also be added to the Vision Inspector Pro.
  • VA: Full chart, line chart, single optotype chart, repeat chart, inverse contrast chart
  • Contrast sensitivity testing (edge)
  • VA or CS testing at different (il)luminances
  • Works with an easy 4 button remote control (standard powerpoint presenter)
  • Quasi-randomization of optotypes
  • Possibility to import 9 images, which can be shown on the patient display
  • Accurate hardware monitor calibration tool
    (so contrasts and luminances can be displayed accurately)



Hardware/software requirements

Hardware / software requirements
  • PC with windows 7, windows 10
  • USB port (in case of a dongle is used)
  • At least 1 GB of internal memory, 100 MB harddisk space
  • Screen resolution of 1280x720 or higher
  • Preferably a dual display system with the second (patient) display connected to the computer through a digital video connection (DVI, HDMI, Displayport). Recommended are the following displays:
    - Fujitsu P23T-6 LED (may not be available anymore)
    - HP EliteDisplay E231e
    If you want to use a different display, Optical Diagnostics can give a full list of specifications for the display.