Laser system and method of detecting cornea cutting threshold value through spectrum analysis

Abstract

The invention relates to the technical field of laser ophthalmologic operation, and particularly discloses a femtosecond laser system of detecting cornea cutting threshold value through spectrum analysis. The femtosecond laser system includes a sample module, a femtosecond laser emission system, a laser focusing module and a spectrum analysis module. When the system works, the femtosecond laser emission system emits a laser beam, which is focused through the laser focusing module and then is irradiated on a cornea sample in the sample module. The cornea sample, after laser induction, sends a laser-induced plasma optical signal to the spectrum analysis module through the laser focusing module. The spectrum analysis module performs spectrum analysis to the laser-induced plasma optical signal and calculates the cornea. The invention correspondingly discloses a method of detecting the cornea cutting threshold value through spectrum analysis. By means of the spectrum analysis to the laser-induced plasma optical signal, the cutting threshold of the cornea is determined, thereby achieving real-time accurate determination of the laser cutting threshold value of the cornea.

Description

technical field [0001] The invention relates to the technical field of laser ophthalmic surgery, in particular to a femtosecond laser system and a method for detecting the ablation threshold using spectral analysis to detect the ablation threshold. Background technique [0002] In the past ten years, femtosecond laser eye surgery has developed rapidly due to its more precise cutting precision and minimized side effects. The most promising clinical application is femtosecond laser eye surgery. Laser keratoplasty and femtosecond laser in situ keratomileusis. In order to achieve the best surgical results, the femtosecond laser pulse energy used in the surgery needs to be as close as possible to slightly above the corneal laser ablation threshold. Accurate real-time measurement of femtosecond laser corneal ablation threshold has very urgent application requirements for surgical applications. [0003] The measurement of corneal laser ablation threshold by scattered light signal...

AI Technical Summary

Problems solved by technology

[0004] The invention aims to overcome the technical defect that the existing femtosecond laser system cannot accurately measure the corneal ablation threshold in real time, improve the measurement accuracy, and provide a femtosecond laser system that uses spectral analysis to detect the ablation threshold

Images