To access the data, click or select the words “Appendix 2.” Clinical data of all 14 families. (Top left) Pedigree charts. The black symbol with arrow indicates a KC proband, the white symbol indicates an unaffected parent, and the gray symbol with red dotted box indicates a subclinical KC parent. (Right and bottom left) Refractive map and BAD map of the worse eye in subclinical members.