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  • Title: [Carotenoid retinopathy. I. Morphologic and functional findings].
    Author: Weber U, Goerz G, Hennekes R.
    Journal: Klin Monbl Augenheilkd; 1985 May; 186(5):351-4. PubMed ID: 4021422.
    Abstract:
    Thirty patients who had undergone long-term treatment with carotenoids (max. 14 years and 336 g of carotenoids) were examined. Ophthalmoscopy revealed retinal crystals in 20 patients. The retinal crystals were usually located around the macula, forming a ring, and in one case they were even found in the macula itself. No deterioration of visual acuity or visual field defects were found, but there was a markedly dose-dependent prolongation of the duration of dark adaptation.
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