Francis Tsai is a concept artist who has worked for companies like Rockstar, EA and Eidos. Sadly, as we told you last month, Tsai was diagnosed with Lou Gehrig’s Disease in 2010, and the condition has slowly taken away his ability to draw.

First he lost the use of his hands, so he learned to draw with his feet; when that was taken away, he promised to learn how to rig up a computer so he could draw with his eyes. Well, Francis’ sister emailed us today to let us know these experiments have been a success.

The pictures you’re seeing here were drawn by Francis using only his eyeballs. Using Tobii’s “eye-gazing” technology, plugged into drawing programs Sketchup and GIMP, Tsai has been able to create these four images using nothing but the motion of his eyeballs. I’m at a loss for words.

You can purchase prints of these from Francis’ store, with all proceeds going towards funding his medical care.