Detection method and a system for an intraocular lens

Abstract

The invention discloses a detection method and a system for an intraocular lens. The detection method comprises the following steps: acquiring a plurality of historical eye images containing an intraocular lens; according to the pre-marked historical feature points in several historical eye images, a feature point acquisition model is established. Obtaining target feature points in the target eyeimage automatically; according to the target feature points, the actual axial degree of the IOL in the target eye image is calculated. The invention can automatically obtain the target characteristicpoints in the target eye image, and then calculate the actual axial position degree of the artificial lens according to the target characteristic points in the target eye image. The degree of rotationof the IOL during follow-up was finally determined, Furthermore, the rotational stability of IOL is evaluated, so as to improve the accuracy and work efficiency of detecting the axial rotation changeof IOL after implantation, so as to facilitate doctors to find out the cause of vision decline of patients and timely carry out corresponding treatment, so as to save and improve the vision of patients and enhance the satisfaction degree of patients.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an artificial lens detection method and system. Background technique [0002] Cataract is the first blinding eye disease in the world at present. Among the elderly aged 60 to 89, the incidence rate of cataract reaches 80%, and the incidence rate of the crowd over 90 years old can reach more than 90%. With the advent of an aging society, the number of cataract patients continues to increase. At the same time, with the progress of the times, patients have increasingly higher requirements for visual quality and comfort after cataract surgery. They no longer stay at the stage of "visible" after surgery, but need to "see clearly" and Seeing comfortably", which also makes cataract surgery has entered the era of refractive surgery from vision restoration surgery. Due to the high incidence of astigmatism in cataract eyes, according to literature reports, about 43% of cataract ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the detection method after intraocular lens surgery in the prior art cannot ensure that the target eye images detected at different follow-up time points all correspond to the same coordinate system, resulting in inconsistent detection, poor accuracy and low efficiency and other defects, the purpose is to provide a detection method and system for intraocular lens

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