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Corneal state evaluation device, corneal state evaluation method and application

A state assessment, cornea technology, applied in the medical field, can solve the problem of irregular astigmatism that cannot be quantified

Active Publication Date: 2021-06-18
WENZHOU MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this metric cannot quantify the amount of irregular astigmatism associated with keratoconus disease

Method used

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  • Corneal state evaluation device, corneal state evaluation method and application
  • Corneal state evaluation device, corneal state evaluation method and application
  • Corneal state evaluation device, corneal state evaluation method and application

Examples

Experimental program
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Embodiment 1

[0026] Embodiment 1. Modeling and verification of LKI index

[0027] 1. Research object

[0028] The subjects of the study were keratoconus patients who visited the Eye Hospital Affiliated to Wenzhou Medical University from September 2014 to December 2017, as well as preoperative screening groups who intended to undergo corneal refractive surgery. A total of 187 keratoconus patients (research group) and 338 normal controls (control group) were included. All recruited patients and normal controls completed various clinical examinations such as slit lamp and Pentacam in the Eye Hospital Affiliated to Wenzhou Medical University. The clinical diagnosis of keratoconus is based on the clinical features of keratoconus: typical topographic features of keratoconus, and at least one clinical sign (eg, Munson sign, Vogt's lines, Fleischer's ring, etc.). The normal controls included in the group were excluded from all known corneal-related diseases and had no obvious abnormalities.

[...

Embodiment 2

[0061] The state assessment device of embodiment 2 cornea

[0062] In this embodiment, a corneal state evaluation device 100 is provided, please refer to figure 2 , figure 2 What is shown is a schematic structural diagram of the state evaluation device 100 .

[0063] Such as figure 2 As shown, the corneal state assessment device 100 includes a processing unit 110 , an input device 130 and / or at least one measurement device 150 , and an output device 170 . Wherein, the processing unit 110 includes a computing unit 112 and a data storage 114 . The calculating unit 112 calculates and obtains an LKI index of a cornea by modeling the LKI index obtained in Example 1 based on the plurality of measured values ​​of the cornea, and evaluates the state of the cornea according to the LKI index.

[0064]As described in Example 1, the plurality of measured values ​​include: corneal thinnest point thickness (ThinnestPachymetry, TP), corneal thinnest point front and rear surface height...

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Abstract

A corneal state evaluation device and a corneal state evaluation method, wherein the state of the cornea is evaluated based on an LKI index calculated and obtained from a plurality of measured values ​​of the cornea.

Description

technical field [0001] The invention relates to the medical field, in particular to a corneal state evaluation device and a corneal state evaluation method. Background technique [0002] Keratoconus (KC) is a bilateral non-inflammatory corneal ectasia characterized by progressive corneal thinning, bulging, and corneal cone protrusion, resulting in changes in corneal refractive power, resulting in decreased vision. Keratoconus occurs more often than in adolescence, and corneal transplantation is required in the late stage. For moderate and severe keratoconus, according to its typical symptoms and signs, the evaluation is often not too difficult. However, early keratoconus sometimes only manifests as mild local protrusion of the cornea, without typical clinical signs, making diagnosis difficult and prone to misdiagnosis and missed diagnosis. [0003] At present, there are some keratoconus detection systems based on corneal topography parameters, such as KISA%, Chastang metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B3/107
CPCA61B3/107
Inventor 金子兵陈世豪李兴勇
Owner WENZHOU MEDICAL UNIV