A capsular ring for insertion into a capsular bag of a patient’s eye includes an anterior ring defining a first opening and having a first cross-sectional width and a posterior ring defining a second opening and having a second cross-sectional width. A diameter of the first opening is greater than a diameter of the second opening, and the second cross-sectional width is greater that the first cross-sectional width. The capsular ring further includes a sidewall connecting the first ring and the second ring, the sidewall comprising a plurality of orifices spaced circumferentially around the sidewall.一種用於插入患者眼睛之囊袋中的囊環包括前囊及後囊,該前囊限定第一開口且具有第一橫截面寬度,而該後囊限定第二開口且具有第二橫截面寬度。該第一開口之直徑大於該第二開口之直徑,且該第二橫截面寬度大於該第一橫截面寬度。該囊環進一步包括連接該第一環及該第二環之側壁,該側壁包含圍繞該側壁周向間隔的複數個孔口。200‧‧‧囊環202‧‧‧前環204‧‧‧後環206‧‧‧側壁206‧‧‧後環208‧‧‧開口208‧‧‧側壁210、216‧‧‧直徑212、218‧‧‧寬度214‧‧‧開口220‧‧‧孔口220‧‧‧囊環
