A new report from a group of UK medical professionals offers a good reminder to make sure you've taken out your old contact lenses before putting in new ones: A woman who thought she just had cataracts actually had 27 lenses in one of her eyes, NPR reports. Doctors were prepping her for cataract surgery, injecting anesthesia, when they found and removed the lenses. 

The woman, said to be in her mid-60s, hadn't complained of eye irritation, but she explained after the contacts were removed that "she thought her previous discomfort was just part of old age and dry eye," one specialist trainee ophthalmologist tells Britain's Optometry Today.

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