Contemporary Artist Paul Kolker The Ishidots Festival

Paul Kolker: The Ishidots Festival is in homage to Dr. Shinobu Ishihara, an ophthalmologist who in 1915
had experimented with test cards of multivariate colored dots to diagnose red-green color blindness.
Kolker's works also use dot patterning, including the rectilinear grids on our digital displays, to test perception.