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Researchers did
on 24 people aged between 28 and 72. They found that
cells used to see
were worse in the older people. The red light helped the
people to see different colours better. Their
got better by 22 per cent. A doctor said
eyesight will be a
problem in the
. He said we need to get ready for this, because: "If you can't see
you can't read or watch TV. You also...fall down and break
."
