CareUEyes - CareUEyes is an eye protection software for windows that comes with blue light filter, screen dimmer, and break reminder

WebGazer.js - Eye tracking on the browser

f.lux - f. lux is a piece of software for Windows, Mac, Linux, iOS, and Android that provides a blue light filter over your screen. Research suggests limiting our exposure to blue light in the hours before bedtime can help us fall asleep faster.

FOVE - An eye tracking virtual reality headset (pre-launch)

Dimmer - A very small and free utility for Windows to reduce brightness on LCD/TFT screens.

Breaks For Eyes - A Mac app to get rid of eye strain, dry eyes and fatigue