Summary of Clinical Data for 20 Chinese WS2 Patients.

A, complete heterochromia iridis; B, partial or segmental heterochromia iridis; C, brilliant blue iris; Skin, numerous brown freckles on the face, trunk, and limb extremities; W, W index; HL, hearing loss; +, sign present; −, sign absent.A：完全性虹膜异色症（complete heterochromia iridis）；B：部分性或节段性虹膜异色症（partial or segmental heterochromia iridis）；C：亮蓝色虹膜；皮肤：面部、躯干及四肢末端可见多发棕色雀斑；W：W指数（W index）；HL：听力损失（hearing loss）；+：体征阳性；−：体征阴性。