INTRAOCULAR LENS WITH PHOTOSENSITIZER AND METHOD FOR MODIFYING THE REFRACTIVE INDEX OF THE LENS
A method for modifying the refractive index of an optical, hydrogel polymeric material. The method comprises irradiating predetermined regions of an optical, polymeric material with a laser to form refractive structures. To facilitate the formation of the refractive structures the optical, hydrogel...
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Format | Patent |
Language | English French German |
Published |
01.06.2011
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Abstract | A method for modifying the refractive index of an optical, hydrogel polymeric material. The method comprises irradiating predetermined regions of an optical, polymeric material with a laser to form refractive structures. To facilitate the formation of the refractive structures the optical, hydrogel polymeric material comprises a photosensitizer. The presence of the photosensitizer permits one to set a scan rate to a value that is at least fifty times greater than a scan rate without the photosensitizer in the material, yet provides similar refractive structures in terms of the observed change in refractive index. Alternatively, the photosensitizer in the polymeric material permits one to set an average laser power to a value that is at least two times less than an average laser power without the photosensitizer in the material, yet provide similar refractive structures. |
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AbstractList | A method for modifying the refractive index of an optical, hydrogel polymeric material. The method comprises irradiating predetermined regions of an optical, polymeric material with a laser to form refractive structures. To facilitate the formation of the refractive structures the optical, hydrogel polymeric material comprises a photosensitizer. The presence of the photosensitizer permits one to set a scan rate to a value that is at least fifty times greater than a scan rate without the photosensitizer in the material, yet provides similar refractive structures in terms of the observed change in refractive index. Alternatively, the photosensitizer in the polymeric material permits one to set an average laser power to a value that is at least two times less than an average laser power without the photosensitizer in the material, yet provide similar refractive structures. |
Author | DING, LI KNOX, WAYNE, H JANI, DHARMENDRA, M SMITH, THOMAS LINHARDT, JEFFREY, G |
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DocumentTitleAlternate | INTRAOKULARLINSE MIT PHOTOSENSIBILISATOR UND VERFAHREN ZUR MODIFIZIERUNG DES BRECHUNGSINDEX DER LINSE LENTILLE INTRAOCULAIRE À PHOTOSENSIBILISATEUR ET PROCÉDÉ DESTINÉ À MODIFIER L'INDICE DE RÉFRACTION DE LA LENTILLE |
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Snippet | A method for modifying the refractive index of an optical, hydrogel polymeric material. The method comprises irradiating predetermined regions of an optical,... |
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Title | INTRAOCULAR LENS WITH PHOTOSENSITIZER AND METHOD FOR MODIFYING THE REFRACTIVE INDEX OF THE LENS |
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