Must have clinical diagnosis of Achromatopsia. Must have a documented mutation in ... Participation in this study will last for a total of five years. There are 12 required study visits in the first ...

Must have clinical diagnosis of Achromatopsia. Must have a documented mutation in ... Participation in this study will last for a total of five (5) years. There are twelve (12) required study visits ...

Their ancestors have a high incidence of the autosomal recessive disorder achromatopsia, or total colorblindness, and genetic analysis of the Pingelapese has revealed the mutation responsible.