@article{ref1,
title="Vitamin A level and dark adaptation in patients with tumors",
journal="Klinische Monatsblätter für Augenheilkunde (1963)",
year="1984",
author="Daxecker, F. and Bichler, E.",
volume="184",
number="2",
pages="112-114",
abstract="Twenty patients with tumors of the head and neck region were found to have delayed dark adaptation. The serum vitamin A levels in these patients were significantly diminished in comparison with normal controls. Since disturbance of dark adaptation does not occur without prolonged vitamin A deficiency, it was reasonable to assume that the deficiency had been in existence for a long time. The antineoplastic effect of vitamin A is considered an important factor in tumor development and growth. Long-term malnutrition may be the reason for the disturbed vitamin A metabolism. Patients who do not attain mesopic vision should be advised against driving at night.<p /><p>Language: de</p>",
language="de",
issn="0023-2165",
doi="",
url="http://dx.doi.org/"
}