Talking Causes Blindness

Prolonged use of mobile phones can lead to permanent eye damage including cataracts, scientists believe.
Medical researchers have found that microwave radiation of the type emitted by mobile phones causes eye tissue to "bubble" - a precursor to the formation of cataracts - and can also interfere with the ability to focus.

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Foolish us. We thought the glazed look was just the product of non-stop talking.