PURPOSE : To identify mutations in the carbohydrate sulfotransferase gene ( CHST6 ) for a Chinese family with macular corneal dystrophy ( MCD ) and to investigate the histopathological changes in the affected cornea .
O O O O O O O B-GeneOrGeneProduct I-GeneOrGeneProduct I-GeneOrGeneProduct O B-GeneOrGeneProduct O O O O O O B-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature O B-DiseaseOrPhenotypicFeature O O O O O O O O O O O O