BRENNAN, NOEL A.,HERNANDEZ, JACLYN V.,CHENG, XU,COLLINS, MICHAEL J.,NANKIVIL, DEREK DEAN,DAVIS, BRETT A.,YI, FAN
申请号：
CA3030725
公开号：
CA3030725A1
申请日:
2019.01.21
申请国别(地区):
CA
年份:
2019
代理人:
摘要：
The present disclosure relates to ophthalmic devices such as ophthalmiclenses.An ophthalmic device may comprise an ophthalmic lens for at least one ofslowing,retarding or preventing myopia progression. The ophthalmic lens may comprisea center zone with a negative power for myopic vision correction； and at leastonetreatment zone surrounding the center zone, the at least one treatment zonehaving apower profile comprising an ADD power, the at least one treatment zone havingasurface shape comprising a portion of a generally toroidal shape, wherein theat leastone treatment zone is arranged as to form a continuous surface with the centerzone.
