Health Update - Your at-a-glance guide to the latest developments and breakthroughs
A new range of lenses promise to correct your sight when worn overnight. For years, we,ve been told to remove them at night, but i-GO lenses - for people with shortsight - work by gently pressing on the eye to restore it to the shape of someone with normal vision. This technique know as orthokeratology, has existed for centuries.
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