METHODS FOR DESIGNING MULTIFOCAL OPHTHALMIC LENSES
摘要
The invention provides methods for designing lenses useful for correcting presbyopia that permits variation of the speed of the power change from distance to near vision power or near to distance vision power. The rate of change may be symmetrical around the midpoint or faster or slower on either side of the midpoint.
申请公布号
CA2503799(A1)
申请公布日期
2004.05.21
申请号
CA20032503799
申请日期
2003.10.28
申请人
JOHNSON & JOHNSON VISION CARE, INC.
发明人
ISKANDER, DAOUD R.;ROFFMAN, JEFFREY H.;DAVIS, BRETT A.;COLLINS, MICHAEL J.