Femtosecond laser system using for imaging and operation at the same time

Abstract

The invention relates to the technical field of laser ophthalmologic operations and provides a femtosecond laser system using for imaging and an operation at the same time. The system comprises a sample module, a femtosecond laser operation module and a secondary harmonic signal imaging module. The femtosecond laser operation module is used for the femtosecond laser cornea cutting operation and provided with a femtosecond laser oscillator. The laser light source generated by the femtosecond laser oscillator is irradiated to the sample of the sample module to generate a secondary harmonic signal, and the secondary harmonic signal imaging module collects the secondary harmonic signal to perform imaging so as to observe femtosecond laser cornea cutting effect. The femtosecond laser system is applicable to actual operations, the femtosecond laser cornea cutting effect can be observed clearly, and large modification of existing operation systems is not needed.

Description

【Technical field】 [0001] The invention relates to the technical field of laser eye surgery, in particular to a femtosecond laser system used for both imaging and surgery. 【Background technique】 [0002] In the past ten years, due to the precise cutting precision and minimized side effects, the field of femtosecond laser eye surgery has developed rapidly and has broad clinical application prospects. In actual operations, femtosecond laser corneal transplantation and femtosecond laser Second laser in situ keratomileusis. In order to achieve the best surgical effect, the femtosecond laser system used in the operation will simultaneously observe the femtosecond laser ablation effect. Accurate observation of the femtosecond laser corneal ablation effect has very urgent application requirements for surgical applications. [0003] The commonly used method to measure the corneal ablation effect of femtosecond laser is to observe through the microscope system of visible light imagin...

AI Technical Summary

Problems solved by technology

[0003] The commonly used method to measure the effect of femtosecond laser corneal ablation is to observe through the microscope system of visible light imaging, and it has been practically applied in surgery, but there is a problem of whether the observed imaging effect is clear enough in this method

Since the bubbles produced by cutting the corneal flap with the femtosecond laser at the focal point of the laser are transparent and colorless during the actual operation, and the corneal tissue itself is also transparent and colorless, the effect of the operation can only be observed with the naked eye through a microscope system for visible light imaging to produce a macroscopic impression. , cannot clearly distinguish the effect of single-pulse femtosecond laser ablation of corneal tissue

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