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A method based on optical coherence tomography to predict the stop point of tear morphology changes after scleral oxygen-permeable contact lenses

A technology of optical coherence tomography and technology prediction, which can be used in image analysis, image data processing, instruments, etc., and can solve problems such as increasing difficulty

Active Publication Date: 2021-04-20
WENZHOU MEDICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, when it is used in the fitting of patients with irregular corneal surface, the difficulty will be further increased

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  • A method based on optical coherence tomography to predict the stop point of tear morphology changes after scleral oxygen-permeable contact lenses
  • A method based on optical coherence tomography to predict the stop point of tear morphology changes after scleral oxygen-permeable contact lenses
  • A method based on optical coherence tomography to predict the stop point of tear morphology changes after scleral oxygen-permeable contact lenses

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Embodiment Construction

[0024] Combine now figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 The present invention is further described,

[0025] A method based on optical coherence tomography technology to predict the stop point of tear morphology after scleral oxygen-permeable contact lens, comprising the following steps:

[0026] (1) The subject wears the lens in the trial lens set that is closest to the relevant parameters of the subject's eyeball according to the product fitting guideline, and a specialist doctor conducts a fitting evaluation. Those who are qualified will receive an anterior segment image scan with swept source optical coherence tomography (SS-OCT). The SS-OCT used in the present invention uses a frequency-sweeping Fourier domain measurement method, and the acquisition time of the 3D scanning image is 0.3-2.4 seconds, which reduces motion artifacts caused by eye movement. The light source adopts a light source with a wavelength of 1310nm, the maximum mea...

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Abstract

A method based on optical coherence tomography technology to predict the stop point of tear morphology changes after scleral oxygen-permeable contact lenses, real-time presentation of the uneven distribution of tear layer morphology after scleral lens wearing lenses, and the process Dynamic changes are of great help to improve the efficiency of clinical fitting, and are particularly important for the fitting principles and safety of the cornea in disease states. They are used to guide clinical fitting and improve fitting efficiency and success rate.

Description

technical field [0001] The invention specifically relates to the technical field of medical detection, and in particular to a method for predicting the stop point of tear form changes after scleral oxygen-permeable contact lenses based on optical coherence tomography technology. Background technique [0002] Scleral Gas Permeable Contact Lens (ScCL), referred to as "scleral lens", the initial use can be traced back to the end of the 19th century. Due to the progress of materials and technology, it overcomes the defects of the original materials and regains received widespread attention. Modern scleral lens is defined as: a rigid oxygen-permeable contact lens that does not touch the cornea and limbus, and is completely supported by the sclera and the conjunctival tissue above it. Modern scleral lenses use high-oxygen permeability (Dk) materials, which not only reduce the complications of the old generation of scleral lenses, but also have a unique feature of the “tear / fluid ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/11G06T7/13G06T7/30G06T7/50G06T17/00
Inventor 王梦怡沈梅晓周煜恒施策吕帆
Owner WENZHOU MEDICAL UNIV