Enhancement of intra-tissue refractive index shaping (IRIS) of the cornea by two-photon absorption

Nanojoule femtosecond laser pulses were used to modify the refractive index of living corneas. By doping with Sodium Fluorescein to increase two-photon absorption, laser scanning speed could be greatly increased while inducing large RI modifications.

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Bibliographic Details
Main Authors: Li Ding, Nagy, L.J., Lisen Xu, Chang, J.C.-H., Swanton, J., Knox, W.H., Huxlin, K.R.
Format: Conference Proceeding
Language:English
Subjects:
(000.1430) Biology and medicine
(170.4470) Ophthalmology
(190.7110) Ultrafast nonlinear optics
Absorption
Iris
Laser beam cutting
Laser theory
Refractive index
Ultrafast optics
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Description
Summary:Nanojoule femtosecond laser pulses were used to modify the refractive index of living corneas. By doping with Sodium Fluorescein to increase two-photon absorption, laser scanning speed could be greatly increased while inducing large RI modifications.
ISSN:2160-9004
DOI:10.1364/CLEO.2009.CWE4