Device for the laser radiation treatment of an eye

A laser irradiation, eye technology, applied in ophthalmology treatment, eye testing equipment, treatment, etc., can solve problems such as suboptimal

Active Publication Date: 2012-03-21
ALCON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, sub-optimal conditions can arise during traditional applicator position setup

Method used

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  • Device for the laser radiation treatment of an eye
  • Device for the laser radiation treatment of an eye
  • Device for the laser radiation treatment of an eye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] exist figure 1 In , the eye to be treated with laser irradiation is schematically indicated with reference numeral 10 . In the exemplary embodiment, laser 12 is used to generate femtosecond pulses. Laser radiation 14 is directed towards the eye 10 via a tool described in detail below.

[0018] The eye is immobilized by means of a suction ring 16 known per se, and the applanation cone 20 is inserted into the seat of the suction ring along the central axis 18 of the suction ring 16, i.e. from figure 1 The position shown in Descends. In the process, the interface unit 22 connects the focusing optics 24 to the suction ring 16 . Focusing optics 24 are guided in the mount. Guided by means of a position sensor 28, the focusing optics 24 are suspended in a free-floating manner via a counterweight 30 and a rope / wheel mechanism or swivel joint, so that the interface unit can connect the focusing optics 24 to the eyes10.

[0019] The suction ring 16 is fixed by means of pipe...

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PUM

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Abstract

The invention relates to a device for the laser radiation treatment of an eye, said device comprising: a laser radiation source (12) for producing laser radiation (14), means (20, 24, 40, 42, 44) for directing the laser radiation (14) onto the eye (10) for the purpose of ophthalmologic surgery on or in the eye, a control (50) for controlling the laser radiation (14) with regard to the eye (10) interms of space and time according to a treatment program (52) which is directed to a center (Z) of the eye, a camera (46) which records a feature of the eye (10), and an image-processing unit (50a) which derives a piece of information about the center (Z) of the eye (10) from the camera recording and inputs this information into the control (50), the control (50) controlling the laser radiation (14, 14') according to the treatment program and depending on the center of the eye derived in step e).

Description

technical field [0001] This invention relates to devices for treating the eye with laser irradiation. Background technique [0002] In refractive eye surgery, visual defects are corrected or mitigated by intervening on the patient's eye to change the refractive and imaging properties of the eye. Specifically, LASIK surgery is known to reshape the cornea of ​​the eye. In traditional LASIK surgery, the first step is to use a mechanical keratotome to create a flat corneal incision to create a so-called valve, which remains firmly attached to the cornea at one end so that it can be turned up to expose the underlying corneal tissue (stroma). Subsequently, so-called ablation (ie removal of tissue) is performed in the exposed stroma, usually with excimer laser irradiation, after which the valve is inverted and healed. The epithelium is largely spared during this procedure, and the healing process is relatively quick and painless. In a traditional mechanical keratotome, a sharp b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/01A61F9/009
CPCA61F2009/00872A61F9/008A61F9/009A61F2009/00855A61F9/00836A61B3/113A61B18/20A61F2009/00863A61F2009/00876A61N5/067
Inventor 克里斯托夫·德尼茨基奥拉夫·基特尔曼
Owner ALCON INC
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