The Aspects of Appearance Project

A set of exhibits on color vision and color vision deficiency, created for the UK’s National Physical Laboratory (NPL).

The Protanopia Room

Protanopia is a form of color vision deficiency where the “red” cone cells are missing from the retina. As a result, people with protanopia have difficulty distinguishing reds, greens and yellows. The Protanopia Room lets you see how a room appears to someone with normal color vision… and then, if you touch the candles, the room transforms to the way it appears to someone with protanopia.

The Protanopia Room
The Protanopia Room
The Protanopia Room as seen by someone with protanopia
The Protanopia Room as seen by someone with protanopia

Types of Color Vision or Color Blindness

Types of Color Vision Deficiency

Visitors can touch the names of various forms of color vision or color blindness (technically, color vision deficiency) and the display will tell them what it is and how common it is.

For the forms of color vision deficiency where one or more cones are missing, the appropriate cones in the display will burst into flames and go up in a puff of smoke when the name of the form of deficiency is touched.

Illustrating Blue Cone Monochromacy

Newton's Apple Tree