公开(公告)号：EP1714181A1

公开(公告)日：2006-10-25

申请号：EP05700133.1

申请日：2005-01-28

申请人： VISION CRC LIMITED ,  Novartis AG

发明人： EVANS, Simon, Rodney ,  HO, Arthur ,  BRENT, Geoffrey, Peter ,  EHRMANN, Klaus ,  FALK, Darrin, Mark ,  PERERA, Sandya, Indrani ,  TAN, Jacqueline ,  DU TOIT, Renee; c/o The Institute for Eye Research

IPC分类号： G02C7/04

CPC分类号： G02C7/043 ,  G02C7/045

摘要： A contact lens having near vision and distance vision portions, the lens being movable on the eye between first and second positions, those positions corresponding with aligning the wearer's vision through the near vision and distance vision portions respectively. The lens is positionally stable on the eye in each of the two positions, and requires a force to be applied to the lens to move between the first and second positions. Preferably the lens has a back surface and a front surface, and said back surface has either one or two major back curve zones occupying a major portion of the lens back surface.