Colour Vision Testing Made Easy http://members.aol.com/nocolorvsn/color5.htm
New colour vision test, developed by Terrace Waggoner, OD, specifically for children who are pre-literate. The CVTMET is a pseudoisochromatic color vision test, with 14 test plates, similar to the Ishihara and AOHRR tests in common use.
FreeVisionTest.com http://www.freevisiontest.com/
Site with free vision tests, animations of the eye, optical illusion tests, and library of terms, to interact with and learn from. Also featuring a database of some US and international eyecare providers.
Vutest.com http://www.vutest.com
A screening test for computer users. Developed by optometrists, vision scientists and programmers at EyeLab (UK) Ltd. in 1991Approved by 'The Royal College of Ophthalmologists', UK, and has been in use as an office vision-screening system since 1992.