Four in ten people live with astigmatism, which can cause blurred vision and eye strain. Here’s what you need to know.
Articles on astigmatism
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Lennon’s round glasses are a key part of how we remember him. And the story behind why he wore them in public is part history, part vision science.
It is possible to have surgery to replace the crystalline lens, the natural lens of the eye, with an implant — without having a cataract. But surgery has risks.
Disease and disorders can affect how we see. Can the images in painted artworks tell us something about the state of an artist’s vision?



