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Method for detecting deviation of retina fixation point relative to macular central fovea

A macular center and detection method technology, which is applied in the fields of eye testing equipment, medical science, ophthalmoscope, etc., to achieve objective and accurate detection results and achieve accurate detection.

Active Publication Date: 2015-03-25
SHENZHEN CERTAINN TECH CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The present invention provides a detection method for the retinal fixation point deviating from the macular fovea.

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  • Method for detecting deviation of retina fixation point relative to macular central fovea
  • Method for detecting deviation of retina fixation point relative to macular central fovea
  • Method for detecting deviation of retina fixation point relative to macular central fovea

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Embodiment Construction

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] refer to figure 2 , figure 2 It is a working principle diagram of OCT, and the OCT system includes: an OCT system light source 101 , a fiber coupler 102 , a sample arm assembly 103 , a detection system 104 , a reference arm assembly 105 and a control system 106 . The light emitted by the light source 101 of the OCT system is divided into two beams after passing through the fiber coupler 102; one beam provides detection light to the sample arm assembly 103, and the other beam provides reference light to the reference arm assembly 105; the detection light i...

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Abstract

The invention belongs to the field of ophthalmic detection, and particularly relates to a method for detecting deviation of a retina fixation point relative to a macular central fovea. The method includes enabling a detected person to watch the fixation point in OCT equipment, and enabling the OCT equipment to scan human eyes of the detected person to acquire a plurality of different OCT diagrams; selecting an OCT diagram with a clear macular central fovea from the OCT diagrams; selecting position of the macular central fovea in the OCT diagram, and determining horizontal and longitudinal coordinates of the position; displaying a scanning position corresponding to the OCT diagram where the macular central fovea is displayed in a fundus video diagram, and acquiring deviation of the retina fixation point relative to the macular central fovea through processing by a computer. By the method, under the premise that cost of the ophthalmic OCT equipment is not increased, accurate detection on deviation position of the retina fixation point relative to the macular central fovea is realized, and the method is objective and accurate in detection result.

Description

technical field [0001] The invention belongs to the field of ophthalmology detection, and in particular relates to a detection method for a retinal fixation point deviating from the macular fovea. Background technique [0002] What people usually say is central vision, which reflects the visual function of the fovea of ​​the retina. At present, all kinds of common eye diseases, such as: age-related macular degeneration, high myopia, diabetic retinopathy and macular hole caused by maculopathy will form a central scotoma, resulting in the defect of central vision, so patients need to use The peripheral retina other than the fovea fixes, which forms preferential retinal fixation, that is, paracentral vision. [0003] When macular degeneration is combined with various common eye diseases caused by choroidal atrophy, the proportion of patients using preferential retinal fixation is as high as 90%. The point of retinal fixation (PRL) formed above the retina near the fovea, as th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/12A61B3/14
Inventor 李鹏王辉何卫红
Owner SHENZHEN CERTAINN TECH CO LTD
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