Abstract: The invention relates to novel photoinitiators and their use in light adjustable compositions. The initiatives comprise two or more multiphoton chromophores linked by a bridging compound. The bridging compound consists of a material that is compatible with the base material of the light adjustable composition. The novel photoinitiator permit the readjustment of light adjustable material without the need for significant amounts of photoabsorbers.
Type:
Grant
Filed:
August 9, 2004
Date of Patent:
July 11, 2006
Assignee:
Calhoun Vision
Inventors:
Shiao H. Chang, Robert H. Grubbs, Julia A. Kornfield, Axel Brait
Abstract: The invention relates to novel intraocular lenses. The lenses are capable of post-operative adjustment of their optical properties, including conversion from single focal lenses to multifocal lenses.
Type:
Application
Filed:
March 18, 2005
Publication date:
August 25, 2005
Applicant:
CALHOUN VISION
Inventors:
Christian Sandstedt, Jagdish Jethmalani, Shiao Chang
Abstract: The invention relates to novel intraocular lenses. The lenses are capable of post-operative adjustment of their optical properties, including conversion from single focal lenses to multifocal lenses.
Type:
Application
Filed:
August 11, 2004
Publication date:
May 12, 2005
Applicant:
CALHOUN VISION
Inventors:
Christian Sandstedt, Jagdish Jethmalani, Shiao Chang
Abstract: Novel blends of photo-initiators and photo-absorbers are disclosed. By the proper selection of the type and amount of absorber used in a composition, it is possible to regulate the conditions under which photo-induced reactions occur. In a specific embodiment, blends of UV initiators and UV absorbers are used to control the conditions under which UV initiated polymerization occurs.
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