| 摘要 |
An ophthalmic lens (200) element is disclosed. The, ophthalmic lens element (200) includes a central region (102) of low surface astigmatism and a peripheral region (112). The central region (102) includes an upper viewing zone (104) for providing a first power suitable for a wearer's distance vision tasks. The peripheral region (112) has a positive power relative to the first power, and surrounds the central region (102). The peripheral region (112) provides an optical correction for retarding or arresting myopia for a wearer and includes one or more regions (110) of relatively higher surface astigmatism, a lower or near viewing zone (106) of low surface astigmatism, and a corridor of low surface (108) astigmatism having a surface power varying from that of the upper viewing zone (104) to that of the lower viewing zone (106). The lower viewing zone (106) is for a wearer's near vision tasks. |
