This is intended for [eye] doctors to use as a portable vision/eye test chart. It displays 1 random letter at a time at industry standard sizes for a patient to read for visual acuity testing purposes.

Only tested on Motorola Droid. Please submit bugs/requests!

This is the free version (has disabled options)

Features:
*Multiple image sets (Limited on free version)
*Multiple ways to move through/choose images
*Set image size (Adjustable by "viewer distance"). Calibration screen is also provided.
*Configurable actions (Limited on free version)
*Invert colors
*Full screen (Limited on free version)

See website (below) for much more information.