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- W2077772623 abstract "Although vitamin A deficiency is common in chronic liver disease, limited data exist on impairment of dark adaptation and response to therapy. The aims were (1) to assess dark adaptation in patients, (2) to assess the relationship between dark adaptation and vitamin A status, zinc and Child-Pugh score, (3) to compare perceived and measured dark adaptation and (4) to assess the dark adaptation response to intramuscular vitamin A.This was a prospective study of 20 patients (alcoholic liver disease 10, other parenchymal diseases six, cholestatic diseases four) awaiting liver transplantation. Selection was based on low serum retinol. There were 15 age-matched controls. Dark adaptation was measured with a SST-1 dark adaptometer and perception by questionnaire. Eight patients received 50, 000 IU of retinyl palmitate, and dark adaptation was repeated at 1 month.Forty per cent of patients had impaired dark adaptation. Patients with alcoholic liver disease were more impaired than those with other parenchymal diseases (p=0.015). No relationship was found between dark adaptation and the biochemical indicators or Child-Pugh score. Seventy-five per cent of patients with impairment did not perceive a problem. After intervention, light of half the previous intensity could be seen (p=0.05).Dark-adaptation impairment was common, was worse in alcoholic liver disease, was largely not appreciated by the patients and improved with vitamin A treatment." @default.
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- W2077772623 date "2010-08-07" @default.
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- W2077772623 title "Dark adaptation in vitamin A-deficient adults awaiting liver transplantation: improvement with intramuscular vitamin A treatment" @default.
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- W2077772623 doi "https://doi.org/10.1136/bjo.2009.179176" @default.
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