@article{ref1,
title="Epidemiology of visual impairment in Britain",
journal="Archives of disease in childhood",
year="1998",
author="Rahi, J. S. and Dezateux, C.",
volume="78",
number="4",
pages="381-386",
abstract="Abstract unavailable.",
language="",
issn="0003-9888",
doi="",
url="http://dx.doi.org/"
}