Hans Jorge Griesser

Title: Innovations of Hans Jorge Griesser

Introduction

Hans Jorge Griesser is a notable inventor based in The Patch, Australia. He has made significant contributions to the field of ophthalmic lenses, holding a total of five patents. His work focuses on the development of silicone hydrogel contact lenses that are suitable for extended wear.

Latest Patents

One of Griesser's latest patents is for an extended wear ophthalmic lens. This invention provides a method for making a silicone hydrogel contact lens. In one embodiment, a prepolymer mixture is polymerized in a lens mold in an atmosphere having less than about 10,000 ppm oxygen. This process results in a silicone hydrogel contact lens that produces less than 10% corneal swelling after a period of continuous wear of seven days, including normal sleep periods. The prepolymer mixture comprises at least one oxyperm material containing hydrophilic groups, which can be a siloxane-containing macromer or monomer, at least one ionperm material, and a cross-linking agent. In certain embodiments, the polymerization may be carried out in an atmosphere having less than about 1,000 ppm oxygen.

Career Highlights

Griesser has worked with prominent companies in the industry, including Ciba Vision Corporation and Novartis AG. His experience in these organizations has contributed to his expertise in the development of innovative contact lens technologies.

Collaborations

Some of his notable coworkers include Peter Chabrecek and Lynn Cook Winterton. Their collaboration has likely played a role in advancing the research and development of ophthalmic products.

Conclusion

Hans Jorge Griesser's contributions to the field of ophthalmic lenses demonstrate his commitment to innovation and improving the quality of contact lenses for extended wear. His patents reflect a deep understanding of materials and processes that enhance user comfort and eye health.