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Amplification augmented reality system for online marking of astigmatism axial position

An astigmatism axial position and augmented reality technology, which is applied in the field of augmented reality technology for real-time indication of corneal astigmatism axial position, can solve the problem that the corneal astigmatism axial position cannot be calibrated online, and achieves the effect of convenient and accurate astigmatism positioning operation.

Active Publication Date: 2019-02-22
WENZHOU MEDICAL UNIV
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the background technology, the present invention provides an augmented reality system for online marking of the astigmatism axis, which mainly solves the problem that the corneal astigmatism axis cannot be marked online in the prior art

Method used

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  • Amplification augmented reality system for online marking of astigmatism axial position
  • Amplification augmented reality system for online marking of astigmatism axial position
  • Amplification augmented reality system for online marking of astigmatism axial position

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Embodiment Construction

[0022] The present invention will be further explained below with reference to the accompanying drawings: an augmented reality system for marking the axis of astigmatism online, comprising: a microscopic imaging unit and a laser indicating unit, the display imaging unit includes an eyepiece optical path assembly 101, The binocular optical path component 102, the beam splitter prism 103, the variable magnification optical path component 104 and the objective lens 105; the laser indicating unit includes a laser transmitter 401 and a lens 405 that can rotate along its own axis; the laser light emitted by the laser pointer passes through the objective lens It is refracted by the dichroic prism and projected on the eye 7 to be inspected for marking the astigmatism axis of the inspected object. The present invention provides an augmented reality system for marking the axis of astigmatism on-line. A laser indicating unit is used to mark and indicate the axis of astigmatism of an object...

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Abstract

The invention discloses an amplification augmented reality system for online making of an astigmatism axial position. The problem that in the prior art, the cornea astigmatism axial position cannot besubjected to online marking is mainly solved. According to the amplification augmented reality system for online making of the astigmatism axial position, a laser indiction unit performs real-time mark indication on the astigmatism axial position of a detected object in a microscopic imaging view field, an observer can track the axial position under the microscope, and the astigmatism positioningoperation can be performed conveniently and accurately.

Description

Technical field [0001] The invention relates to the field of optical equipment, in particular to a device system for marking the axis of astigmatism online, and in particular to an augmented reality technology for marking the axis of corneal astigmatism in real time during ophthalmological surgery. Background technique [0002] Astigmatism is a common refractive error. About 50% of cataract patients need to correct corneal astigmatism during cataract surgery. Implantation of Toric intraocular lens is currently one of the main methods for the treatment of cataract with astigmatism. Clinical practice shows that the Toric intraocular lens has strict requirements for the alignment of the astigmatism axis of the intraocular lens and the astigmatism axis of the cornea. After the implantation of the Toric intraocular lens, every 1° rotation of the intraocular lens will cause the loss of astigmatism correction by 3.3%; when the rotation reaches 30°, it will completely lose the correctiv...

Claims

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Application Information

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IPC IPC(8): A61B3/103A61F9/007G02B21/00G02B21/06G02B21/36G02B27/34
CPCA61B3/1035A61F9/007G02B21/0004G02B21/06G02B21/361G02B27/34
Inventor 冯海华厉以宇潘安鹏俞阿勇
Owner WENZHOU MEDICAL UNIV
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