Parameter processing method based on orthokeratology lens fitting and related equipment

Abstract

The invention discloses a parameter processing method and related equipment based on orthokeratology lens fitting, and the method comprises an obtaining step: obtaining instantaneous refractive power characteristic data of a to-be-measured cornea and to-be-measured eye measurement parameters of a patient; an evaluation step: simulating a cornea parameter map of the corrected cornea to be measured, wherein the cornea parameter map is generated according to the instantaneous refractive power characteristic data and the measurement parameters of the eye to be measured and used for predicting lens parameters matched with the eye to be measured, and the lens parameters comprise OK lens height difference parameters; and an output step: extracting the corrected cornea parameter map data of the to-be-measured cornea, and outputting a height difference parameter prediction result according to a preset linear regression algorithm. The important glasses matching parameters and the height difference parameters of the patient to be tested are accurately predicted by applying the linear regression algorithm, and the technical problems that the height difference parameters are large in error and low in glasses matching reliability in the current manual experience glasses matching are solved.

Description

technical field [0001] The present application relates to the technical field of glasses dispensing, in particular to a parameter processing method and related equipment based on orthokeratology glasses dispensing. Background technique [0002] Orthokeratology lenses (OK lenses) are a special type of RGP lens. Ordinary RGP lenses (myopia lenses) are used to correct vision, while plastic lenses are used for "orthopedics", that is, to improve vision by changing the shape of the corneal assembly. The OK lens obtains the height of the 4mm axial position of the cornea to be corrected, and obtains the height difference through calculation. Combined with the simultaneous action of the gap between the OK lens and the cornea and tears, the "corrective" effect is achieved. [0003] Most of the existing OK lens parameters are obtained by measuring instruments. However, due to the small eyes of the patient or the range of the instrument, the corneal topography instrument cannot complet...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing OK lens parameters are obtained by measuring instruments. However, due to the small eyes of the patient or the range of the instrument, the corneal topography instrument cannot completely measure the four millimeters of the cornea, especially the acquisition of height difference parameters. Manual calculations relying on the experience of the orthokeratologist

This results in an error in the output of the height difference parameter, which affects the accuracy of the OK mirror fitting

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