公开(公告)号：US20240160048A1

公开(公告)日：2024-05-16

申请号：US18394846

申请日：2023-12-22

申请人： Khalifa University of Science and Technology

发明人： Haider BUTT ,  Muhammed HISHAM ,  Abdelrahman Sakr

IPC分类号： G02C7/10 ,  B29C64/124 ,  B29C64/188 ,  B29C64/314 ,  B29C64/35 ,  B29D11/00 ,  B29K33/00 ,  B29K105/00 ,  B29L11/00 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  G02B1/04 ,  G02C7/04

CPC分类号： G02C7/104 ,  B29C64/124 ,  B29C64/188 ,  B29C64/314 ,  B29C64/35 ,  B29D11/00038 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  G02B1/043 ,  G02C7/04 ,  B29K2033/08 ,  B29K2105/0032 ,  B29K2995/002 ,  B29K2995/0026 ,  B29L2011/0041

摘要： A method of forming an ophthalmic contact lens may include the steps of preparing a first resin mixture including HEMA, PEGDA and a photoinitiator, preparing a second resin mixture including HEMA, PEGDA, a photoinitiator, and a pH sensitive dye, forming a first layer of the contact lens using an additive manufacturing apparatus by dispensing and curing the first resin mixture, and forming a second layer of the contact lens onto the first layer using the additive manufacturing apparatus by dispensing and curing the dispensed second resin mixture onto an outer surface of the first layer. A ratio of HEMA to PEGDA is higher in the second resin mixture than the first resin mixture and a volume of photoinitiator in the second resin mixture is less than the is less than a volume of photoinitiator in the second resin mixture. An ophthalmic contact lens configured to treat CVD is also provided.