TIFF (raster) images of the individual symbols
in the Auckland Optotypes. This is the vanishing (White-Black-White on grey) version.
Images are all 4096 x 4096 pixels, background is grey (grey level 128), stroke
is black (grey level 0)
Funding
Cure Kids 3707907 “An efficient, low-cost method for detecting and assessing childhood amblyopia (“lazy-eye”) using a tablet computer”