Paragraph 2
The
was carried out by a team from University College London. Researchers conducted
on 24 men and women
between 28 and 72. They said some cells that help us process
had deteriorated in the older people. Doctors say their red light improved the
of these people to detect different colours,
blue. The vision of these older people improved by as
as 22 per cent. Doctor Jeffrey said: "Populations are ageing
and this is going to be a major issue in the future. We need to gear up for this." He added: "If you can't see
you can't read or watch TV. You also tend to fall down and break bones. Our lights are a step in this
."