Orthokeratology involves wearing a specially designed rigid contact lens overnight. There’s good evidence it can help slow the progression of myopia. But like all treatments, there are risks, too.
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Just the tiniest bit of light can let you see in the ‘dark.’ Here’s how your eyes do it.
Pets, like guinea pigs, lead very different lives to humans – and that’s why they need very different eyes, too.
Chicken eyes are stranger than you think: they can look up and down at the same time.
