公开(公告)号：US10925721B2

公开(公告)日：2021-02-23

申请号：US15535064

申请日：2015-08-13

申请人： Prakhyat Roop

发明人： Prakhyat Roop

IPC分类号： A61F2/16 ,  A61F2/00

摘要： An optical implantable member (102) is provided. The optical implantable member (102) includes an optic (104). The optic (104) includes an anterior surface (108) and a posterior surface (110), an optical centre (112) and a peripheral edge (116). The optical implantable member (102) is configured to be placed within a capsular bag of the eye. The optic (104) of the optical implantable member (102) includes a barrier (202). The barrier (202) is formed by a protrusion (202) on the posterior surface (110) of the optic (104). The protrusion (202) is concentric to an optical axis (114) of the optic (104). An outer wall (204 or 208) of the protrusion (202) is between the peripheral edge (116) and the optical centre (112). The barrier (202) restricts epithelial cells from migrating towards a central region of the capsular bag.

公开(公告)号：US20230098580A1

公开(公告)日：2023-03-30

申请号：US17908257

申请日：2021-03-18

申请人： Prakhyat ROOP

发明人： Prakhyat ROOP

IPC分类号： A61F2/16

摘要： A lens device comprises a base lens formed with a plurality of diffractive zones, each having a negative diffractive subzone and a positive diffractive subzone. The negative and the positive diffractive subzones are optionally and preferably arranged alternately. Each diffractive subzone typically has a constant-sign curvature along a radial direction of the base lens.