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Contact lens without central moire pattern, method for analyzing changes in moiré pattern thereof, and monitoring system for changes in intraocular pressure

A contact lens and monitoring system technology, applied in tonometers, glasses/goggles, instruments, etc., can solve the problems of unfavorable carrying, error of measurement results, complex calculations, etc., and achieve the effect of avoiding damage or infection

Active Publication Date: 2019-11-12
王伦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this measurement method requires the assistance of professionals to operate the measuring instrument, and during the operation, the movement of the user's head may cause errors in the measurement results
The measurement method of reflective corneal curvature is limited by the weak intensity of the reflected image, which requires complex calculations
Moreover, such measuring instruments are often too bulky to carry around, so they are not suitable as portable devices for monitoring intraocular pressure

Method used

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  • Contact lens without central moire pattern, method for analyzing changes in moiré pattern thereof, and monitoring system for changes in intraocular pressure
  • Contact lens without central moire pattern, method for analyzing changes in moiré pattern thereof, and monitoring system for changes in intraocular pressure
  • Contact lens without central moire pattern, method for analyzing changes in moiré pattern thereof, and monitoring system for changes in intraocular pressure

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Experimental program
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Effect test

Embodiment Construction

[0051] see Figure 1 to Figure 3 A contact lens with no moiré pattern in the center (hereinafter referred to as contact lens 10 ) is used to sense changes in intraocular pressure (IOP). The contact lens 10 includes a first material layer 110 and a pattern (hereinafter referred to as the first pattern 130 ). Here, the first material layer 110 is made of light-transmitting material. The first material layer 110 can be a hard contact lens material or a soft contact lens material. The first pattern 130 is formed by a plurality of sub-patterns (hereinafter referred to as first sub-patterns) arranged at intervals.

[0052] Looking down from the surface of the contact lens 10, the contact lens 10 has a central area Ac and an annular area Aa surrounding the central area Ac. When the contact lens 10 is placed on the surface of the eyeball 20 of the user, the central area Ac corresponds to the pupil of the eyeball 20 , and the annular area Aa corresponds to the iris of the eyeball 20...

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Abstract

A contact lens without moiré patterns in the center, a method for analyzing changes in moiré patterns thereof, and a monitoring system for changes in intraocular pressure are related to a contact lens comprising a first material layer and a first pattern. The first material layer has a central area and an annular area surrounding the central area. When the contact lens is placed on the surface of the eyeball, the central zone corresponds to the pupil of the eyeball and the annular zone corresponds to the iris of the eyeball. The first pattern is formed in the annular area, and is formed by a plurality of first sub-patterns arranged at intervals. The first pattern is used to overlap the second pattern to form a moire pattern.

Description

[0001] Citation [0002] This invention is related in part to provisional application numbers 62 / 155,344, filed April 30, 2015 in the United States and 62 / 155,747, filed May 1, 2015 in the United States. The entire contents of these provisional applications are incorporated herein by reference. technical field [0003] The present invention relates to intraocular pressure (IOP) sensing technology, in particular to a contact lens with no moire pattern in the center, a method for analyzing changes in the moire pattern, and a monitoring system for intraocular pressure changes. Background technique [0004] Intraocular pressure is one of the criteria for measuring glaucoma, and excessive changes in intraocular pressure can lead to damage to the optic nerve. Early detection of glaucoma and appropriate medical management to slow the progression of glaucoma can therefore be achieved if changes in IOP are continuously monitored. [0005] The most common way to measure intraocular ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02C7/04A61B3/16
CPCA61B3/16G02C7/046
Inventor 王伦萧惟中
Owner 王伦
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