The latest version of the Freiburg Vison Test FrACT₁₀ includes the following changes:

  • Gamma calibration has been added. Now contrast threshold is really useful.
  • On tablets, orientation change (portrait ⇄ landscape) now causes a reload, no more cropped parts. Can be disabled in Settings.
  • “Oblique only” added on request (makes only sense for 4AFC Landolt rings)
  • Now “true” randomisation using the current time
  • Useful button “Check Exported” in Help.
  • as always, a number of small internal improvements.

You can find it here. Planned:

  • Update the manual
  • Delay between presentations
  • Dithering for contrast
  • Make it open source.