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Scientists say they have help for
people with
eyesight. That is shining a red light in the eyes for three minutes. Doctors say three minutes of the red light every
for two weeks could help make older people see
. Not any red light will improve
. A researcher looked at the effects of red light and
in older people. He said: "I
suggest that people do not just go and buy a red light off the
. They have to produce the right wavelength and be
. We are looking for a commercial
to do this and to price them at...around $20."
