This solid wonder manipulates the light, a magician for focus on the retina’s scene.
What is the iris?
Chromatic Canvas for $200: Red, green, and blue, a trio so vibrant, create this world of hue and radiance
What are cone cells?
The lost jigsaw filled, the edges made sharp, the invisible delineated, a thought-powered engine
What are Gestalt principles?
Light’s miniature dancer's rods and cones paint the world colors on the canvas of the eye
What are photoreceptors?
Shades of Gray for $400: A colorless world where black shadows reign, a black and white picture is presented, and the night hisses grey
What is colorblindness?
Lines that snake and twist, a playful trap of a mind, the Ponzo illusion, a visual game
What is the Ponzo illusion?
Tells no story between the cornea’s dome and the lens’s jewel; light bends and focuses
What is light refraction?
Rods ruled over the night, too, painting pictures with the miserable suns of stars
What is night vision?
The air is still. An object flies, dancers surround it, and also is a phantom in flight
What is induced motion?
When optic threads intersect, there is a blind spot, a concealed void amid our viewing firmament
What is the optic disc?
The scales are painted with cells in changing colors – a mystery shrouded – green, yellow, and gold
What are chromatophores?
From crooked to straight, a cup is still a cup, a clever mind, not giving up
What is object constancy?
Rays of light separated in prisms and in prisms again, a spectrum in nature’s entertaining labyrinth
What is dispersion?
Red, as ripened and radiant as a compass to eyes, the theory says, where salvation dwells
What is the trichromacy theory?
Faces unidentifiable, ill-aligned objects, a visual discord in agnosia’s shade
What is visual agnosia?