But he could recognize colors and had normal visual acuity.
Anyone who was around in the 60's will recognize the shapes and colors.
He is credited as being the first to recognize structural colors in the seemingly clear transparent wings of Drosophilidae in 1843.
Tests measure how well you recognize different colors.
Grunwald could still recognize shapes and colors, but reading had become "the visual equivalent of struggling for breath."
They "recognize" colors by their feel and smell.
The constellations were not those of Earth, but after passing night after night beneath them, she was beginning to recognize patterns and colors.
She called the pupils' performance remarkable, considering that many entering kindergarten "don't even recognize colors or know their numbers."
Through play with toys infants begin to recognize shapes and colors.
Photopsins are chemical proteins within the cone receptors of the eyes that recognize colors.