vision The $1.99 ruler that measures pupillary distance (so you can order eyeglasses online) Rusty Blazenhoff

Science Twins tend to look at images in the same eye movement patterns Andrea James

Kids Explore what London looks like in infrared Andrea James

Kids Look at this interesting explainer on eye charts and human visual acuity Andrea James

Science Your perception of this graph is a graph of your perception David Pescovitz

music Mark Mothersbaugh from DEVO has a line of rad eyeglasses David Pescovitz

prosthetics How prosthetic eyes are made David Pescovitz

international space station Why does long-term zero-g hurt astronauts' eyes? Mystery solved Andrea James

design Popular design guides are responsible for plague of grey type Cory Doctorow

Funny Man blind since birth asked if he knows what he looks like David Pescovitz

vision Cool video demonstration of change blindness Mark Frauenfelder

picks What happens when you look at the sun through a telescope Mark Frauenfelder

happy mutants The woman who can see 100 times more colors than you can David Pescovitz

Science Blindsight: weird phenomenon deepens the mystery of consciousness David Pescovitz

vision This trippy GIF reveals patterns each time you blink Andrea James