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Correcting presbyopia with the laser

06.02.2019

Presbyopia and astigmatism are widespread. To prevent the glasses from becoming unavoidable, the Laser Zentrum Hannover e.V. (LZH) has developed a virtual eye model together with two project partners. With this, an eye surgery can be simulated. During the so-called fs-lentotomy, the lens of the eye is made more flexible again by generating microsections with a femtosecond laser. In fs-keratotomy, the astigmatism of the cornea is compensated by targeted cuts.

For the RayFEye project, the scientists of the LZH have developed both a mechanics and an optics model.


In order to better predict eye surgeries in the future, scientists at the LZH have developed both a mechanics as well as an optics model of the eye.

Photo: LZH

The mechanical model was used on test eyes (a by-product of the animal) to examine how laser incisions in the lens and the cornea influence their refraction behavior.

Based on these data, the researchers then developed a biomechanical model that can also be analyzed for optical imaging performance.

The model is supposed to predict the optimal placement and the expected vision of the patient before surgery.

The long-term goal is to develop gentle surgical methods and to replace clinical studies through virtual studies.

About RayFEye

In addition to the LZH, the Optimo Medical AG (formerly Integrated Scientific Services AG), which is developing the OptimEyesTM software, and the ROWIAK GmbH, the manufacturer of the laser system, are involved in the project.

The joint project "Ray tracing in ophthalmic finite element models for predicting visual acuity enhancement" (RayFEye) was funded within the framework of the Eurostars program by the Federal Ministry of Education and Research (BMBF) and by the Swiss State Secretariat for Education, Research and Innovation (SERI) under the grant number 01QE1545B.

Wissenschaftliche Ansprechpartner:

Laser Zentrum Hannover e.V.
Dipl.-Biol. Lena Bennefeld
Communication Department
Hollerithallee 8
D-30419 Hannover
Germany
Tel.: +49 511 2788-238
Fax: +49 511 2788-100
E-Mail: presse@lzh.de
Internet: www.lzh.de

Lena Bennefeld | Laser Zentrum Hannover e.V.

Further reports about: LZH Laser Laser Zentrum Hannover laser system lens

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