A corneal biomechanical detection instrument and its application method

Abstract

The invention belongs to the technical field of ophthalmological detection and particularly relates to an instrument for detecting cornea biomechanics and an application method of the instrument. The instrument comprises a power device. The power device is connected with a probe through a power transmission mechanism. The probe is used for detecting the biomechanical performance of corneas and provided with a pressure sensor and a displacement sensor. The instrument for detecting cornea biomechanics is capable of increasing detection data accuracy and simple and reliable in detection process.

Description

technical field [0001] The invention belongs to the technical field of ophthalmology detection, and in particular relates to a corneal biomechanical detection instrument and a use method thereof. Background technique [0002] The cornea is a complex biomechanical composite structure whose properties depend on structural subunits and patterns of assembly. In the cornea, only the Bowman's membrane and the stroma are collagen tissue layers, which are the main structural components that provide corneal strength; the corneal epithelium contributes little to the corneal strength, and the curvature of the cornea after corneal refractive surgery removes the corneal epithelium is almost No effect; the stretchability and low strength of the Descemet's membrane make it stretchable under a wide range of intraocular pressure, and it can well buffer and protect the corneal stroma that may cause damage to the corneal endothelium damage. [0003] The structural material and mechanical pro...

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Problems solved by technology

However, in actual use, it is often necessary to test multiple times and the results of each test are significantly different, and because the biomechanical properties of the cornea can be improved after the cornea is cross-linked by ultraviolet rays, those who have undergone ultraviolet cross-linking before using the above two instruments for detection In the case of cornea, there is often a problem that there is no difference between the intensity after surgery and the intensity before surgery, or the data deteriorates

After analysis, it is believed that the traditional non-contact detection method cannot continuously take pictures when using imaging technology to obtain corneal images, that is to say, the collection of corneal deformation information is intermittent and discontinuous during detection, so the collected information exists deviation, and due to the existence of the deviation of the collected information, the final detection result will be inaccurate, which is the deficiency in the prior art

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