Technicolor Vision

It’s a truly brilliant world… for hummingbirds! This is Sandra Tsing Loh with the Loh Down on Science. Pretty blues! Vibrant reds! We humans see colors because of special cells in our eyes called cones. Hummingbirds have an extra cone that detects UV light — light from the sun WE can’t see.

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Curing Bad Eyesight

Person holding glasses to eye chart

Has print gotten twice as tiny? Or is my eyesight not what it used to be? This is Sandra Tsing Loh with The Loh Down on Science, saying… EYE am not the only one!  Most people experience declining eyesight as they get older. They find it difficult to distinguish colors

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50 Shades of Blue

Wearing one red sock and one blue sock today? That’s what you get for dressing in the dark! Sort of. This is Sandra Tsing Loh with The Loh Down on Science. Think of vision as a series of brain cells turning each other on. Not so much romantically, as literally.

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Night Vision

As “Game of Thrones” fans know — winter is coming! Let’s hope the white walkers don’t have night vision! This is Sandra Tsing Loh with the Loh Down on Science. We humans aren’t the best at night vision. We detect motion with direction-selective ganglion cells, or DSGCs. Some specifically detect

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Vision Quest

So many kids today are nearsighted. Is the villain… Candy Crush? This is Sandra Tsing Loh with the Loh Down on Science. Facebook, Youtube, Fruit Ninja – everyone seems to be glued to their screens these days, especially the kids! Is all this screen time hurting children’s eyesight? Po-Wen Ku

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Choco-Vision

Is the way to better vision… a golden ticket? This is Sandra Tsing Loh with the Loh Down on Science, and some really sweet news! For years, carrots have been the go to food when it comes to improving vision. They’re rich in beta-carotene, which nourishes the eyes. But scientists

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Laser Vision

Want better vision? How about. . . squishing your eyeballs? This is Sandra Tsing Loh with the Loh Down on Science. Eye shape is the key to perfect vision. But most of us have eyes as wonky as a Picasso portrait. Lasik eye surgery fixes vision by reshaping the eye’s

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