Schraub M.,University of Marburg |
Hampp N.,University of Marburg |
Hampp N.,Material Science Center Marburg
Progress in Biomedical Optics and Imaging - Proceedings of SPIE | Year: 2011
Over the past 100 years medicine evolved continuously, which can clearly be seen in the rising average of life expectancy. But as the population becomes older and older the number of old age diseases increases. Cataract is such an old age disease and worldwide the number one reason for blindness. Implantation of IOL's is up-to-date the only possibility to restore vision. In this study we present novel polymers containing derivatized coumarins in the side chains as smart materials for IOL manufacturing. These materials enable tuning of the focal length of an already implanted IOL by 2 diopters via photo induced dimerization and cleavage of the coumarin side groups respectively. The advantages of these new polymers are increased dimerization rates while decreasing the energy dose needed for photochemical dimerization of the coumarin side groups. © 2011 Copyright SPIE - The International Society for Optical Engineering.