Clouded Vision

What’s clouding our vision, even when skies are clear? This is Sandra Tsing Loh with the Loh Down on Science. Bad air quality, like smog and smoke, can reduce visibility and cause illnesses like asthma. Children are especially susceptible to harm from pollution. But is air pollution also damaging their

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Eye-deal Solution

You can’t hide your aging eyes…  This is Sandra Tsing Loh with the Loh Down on Science. Is it me, or are these crossword puzzles getting SMALLER?? Age-related vision problems can be caused by a gradual loss in photoreceptors. Those are special cells inside the eye that catch light to

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Eye-deal Solution

You can’t hide your aging eyes…  This is Sandra Tsing Loh with the Loh Down on Science. Is it me, or are these crossword puzzles getting SMALLER?? Age-related vision problems can be caused by a gradual loss in photoreceptors. Those are special cells inside the eye that catch light to

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Amazing Sight

Up-close black and white image of an adult man

Amazing Grace, how sweet the…sight?!  This is Sandra Tsing Loh with the Loh Down on Science. When light enters the eyes, the light-sensitive cells send signals to the brain. Let there be sight! But the disease Retinitis Pigmentosa, or RP, can cause loss of vision. José-Alain Sahel at Sorbonne University,

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Big Screen, Small Sight

Person using a computer screen and tablet

Sometimes seeing the big picture. . . can lead to a BIG headache! This is Sandra Tsing Loh with the Loh Down on Science. Watching the latest X-Men movie on a huge screen? Yes, please! But stare at TVs too long and our eyes and head begin to ache. Do

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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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Cuttlefish Shades

Why did the  CUTTLEFISH wear glasses?! For science, of course! This is Sandra Tsing Loh with The Loh Down on Science. Cuttlefish aren’t fish — but they ARE amazing creatures. They can instantly change color to fool predators and prey. But how do they SEE their surroundings? Still a mystery!

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Liquid Spectacle

    Nothing like diving into a good book! But why do they make the print so SMALL???   This is Sandra Tsing Loh with the Loh Down on Science.   Presbyopia, or far-sightedness, is a common problem for (ahem) eyes of a certain age. Bring on the bifocals —

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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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