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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Fresh Eyes

New hope for the Three Blind Mice? This is Sandra Tsing Loh with the Loh Down on Science. The Farmer’s Wife may yet be foiled thanks to researchers from Fudan University. For sighted people, light gets picked up by cells in our eyes. These cells have sheets of pigment that

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