Modeling of conductive and convective heat transfers in retinal laser treatments

Julien Sandeau*, Georges Caillibotte, Jochen Kandulla, Reginald Birngruber, Gabriela Apiou-Sbirlea

*Corresponding author for this work


Tumor thermo treatment such as photodynamic therapy (PDT) or transpupillary thermotherapy (TTT) deal with long term and large laser spot exposures. The induced temperature increase is not exactly known [1]. Under these conditions convective heat transfers due to the blood flow in the choroid and the choriocapillaris must be considered in addition to the usually calculated heat conduction. From an existing analytical model defining a unique convective term for the whole fundus irradiated with Gaussian irradiance distribution lasers [2], we developed a numerical one allowing a precise modelling of convection and calculating heating evolution and temperature profiles of the fundus of the eye. The aim of this study is to present the modelling and several comparisons between experimental results [3] and numerical ones concerning the convective heat transfers inside the fundus of the eye.
Original languageEnglish
Title of host publicationOphthalmic Technologies XVI
EditorsFabrice Manns, Per G. Söderberg, Arthur Ho
Number of pages9
Publication date07.03.2006
Article number61381A
ISBN (Print)978-081946181-0
Publication statusPublished - 07.03.2006
EventOphthalmic Technologies XVI - San Jose, United States
Duration: 21.01.200624.01.2006
Conference number: 67565

Research Areas and Centers

  • Academic Focus: Biomedical Engineering


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