Plasma zinc levels in high myopia and retinitis pigmentosa
Silverstone, B.Z.; Berson, D.; Seelenfreund, M.H.
Metabolic and Pediatric Ophthalmology 5(3-4): 187-190
1981
ISSN/ISBN: 0191-2771 PMID: 7311660 Document Number: 179309
Evidence of abnormalities in Cu metabolism in some pigmentary retinopathies were previously shown. Since there is a definite ratio between Cu and Zn in certain systemic disorders, this study was carried out to determine if there are any abnormalities in Zn metabolism in eyes with pigmentary disturbances, specifically high myopia and retinitis pigmentosa. This study was comprised of 30 patients evenly divided between high myopia, retinitis pigmentosa and controls. In the retinitis pigmentosa group low PZL [plasma Zn level] values which were statistically significant were found. In the high myopia group the Zn values were the same as the control group. The reverse ratio between Cu and Zn was not found in any of these patients.