Cheese - Cheese uses your webcam to take photos and videos, applies fancy special effects and lets you share...

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

Webcamoid - Webcamoid is a full featured webcam capture application.

WebGazer.js - Eye tracking on the browser

Cameroid - Just like Photo Booth - exept is online. Have fun with your webcam. Apply text and funny effects.

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