This is a really great portrait photography trick that requires no special equipment: use a black marble to see how the light hits on the eyes of the person you want to photograph: More »
Sensory adaptation, the same phenomenon that causes you to stop hearing a continually ticking clock, also prevents you from seeing the branching network of blood vessels inside your eye. Except when you use the simple trick demonstrated in this video. More »
Take a good look at this image. In fact, stare at it, dead centre. There’s no trick to it; just look straight ahead, relax, and watch as something you know is there vanishes into nothingness. More »
There is something about blue eyes that can pierce another person’s soul while also acting as a revealing window into your own. Eyes that are brown? Not so much. What if you wanted blue eyes, though? colour contacts? Meh. Try this new laser surgery that’ll permanently transform your eyes blue. More »
As cataracts is the main cause for blindness, a phone accessory that diagnoses cataracts could cut down on blindness, particularly in the developing world. As shown in the video here, MIT’s CATRA is a low-cost solution which not only detects cataracts, but also tracks the severity of them over time. More »
