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Device and method for detecting laser photorefractive keratectomy threshold

A technology of laser and cornea, which is applied in ophthalmology treatment and other fields, can solve the problem of whether the measurement is accurate or not, and achieve the effect of real-time and accurate determination

Inactive Publication Date: 2015-09-02
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

This method can be practically applied to surgery because the detection light signal is in the parallel direction of the cutting light, but there is a problem of whether the measurement is accurate

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  • Device and method for detecting laser photorefractive keratectomy threshold
  • Device and method for detecting laser photorefractive keratectomy threshold
  • Device and method for detecting laser photorefractive keratectomy threshold

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0021] first reference figure 1 , shows a device for detecting corneal laser ablation threshold according to one embodiment of the present invention, including: a laser system and a laser-induced plasma spectroscopy system; wherein, the laser system is a femtosecond laser 1, and the spectrum of the laser-induced plasma spectroscopy system 9 The detection range is from 190nm to 600nm.

[0022] The femtosecond laser 1 and the laser-induced plasma spectroscopy system 9 are specifically combined through an optical system; the optical system includes a scanning module, a laser light intens...

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Abstract

The invention relates to the technical field of laser ophthalmologic keratectomy, in particular to a device for detecting a laser photorefractive keratectomy threshold. The device comprises a laser system and a laser induced plasma spectrum system. A light path system comprises a scanning module, a laser intensity adjusting module, a beam expanding module, a light splitting module, a light filtering module and a focusing module. The invention further discloses a method for detecting the laser photorefractive keratectomy threshold. By means of the device and method for detecting the laser photorefractive keratectomy threshold, the laser photorefractive keratectomy threshold can be accurately determined, and the device and method are applied to practical clinic.

Description

technical field [0001] The invention relates to the technical field of laser eye surgery, in particular to a device and method for detecting the threshold value of corneal laser ablation. 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 very rapidly. The most promising clinical application is femtosecond laser eye surgery. The actual operation has included femtosecond laser Corneal transplant surgery 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...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/01
Inventor 孙辉樊仲维
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI