Far, near sight testing system of computer

A test system and technology of visual acuity test, applied in the direction of comprehensive refraction tester, etc., can solve the problem of high production cost of the instrument

Inactive Publication Date: 2009-01-14
刘鹏程 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Use other vision testers to test eyesight. Although manual participation is not required, the production cost of the instruments is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0004] 1. Start the VB integrated development environment and establish the vision test project. Create a vision test result database in the visual data manager, and add fields such as number, name, left far vision, right distance vision, left near vision, right near vision, etc.

[0005] 2. Set the display resolution to 800*600. Scan the optotype of each row in the international standard eye chart, and process the scanned optotype pictures with photoshp, so that the size of each line of optotype displayed on the monitor is the same as that in the standard eye chart. The four optotypes with different opening directions in each row are made into four bitmaps and numbered respectively. For example, the 0.1 optotype picture files are respectively named 1, 2, 3, 4, the 0.12 visual mark picture file is respectively named 5, 6, 7, 8 according to the opening to the right, downward, leftward, and upward, and so on, and the 1.5 visual standard picture file is according to the opening ...

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PUM

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Abstract

The invention discloses a computer distant and near vision testing system, which relates to the application of the computer technology in the medical care and the hygiene. At present the distant and near vision testing result is manually judged. The production costs of other vision testing testers are high. The technical proposal of the computer distant and near vision testing system for solving the problem is as follow: the visual targets of the international standard visual acuity chart are scanned and processed through software, such as photoshop, to form visual target pictures, programming is performed through the computer VB programming language, the visual target pictures are displayed on a computer in equal ratio according to the hygienic vision testing requirements, the person to be tested inputs the directions of the visual targets through the four direction keys on the keyboard, the result is judged through the computer, and the testing result is automatically added into a data base. The testing system is mainly applied to the screening and examining to the human vision in medical institutions, health agencies, schools, eyeglasses stores and families, the user interface is friendly, the operation is convenient, the prior computer equipment is utilized, and the popularization is easy.

Description

Technical field: [0001] The computer far and near vision test system is the application of computer technology in medical treatment and hygiene. Background technique: [0002] At present, in the distance and near vision tests, the most used is the international standard eye chart. The selection and display of the visual targets in the eye chart are manually instructed, and the visual acuity is judged manually. Test eyesight with other visual acuity tester, though do not need artificial participation, but the instrument production cost is higher. Invention content: [0003] The computer far and near vision test system is to scan the optotype in the international standard eye chart, and process the scanned pictures with software such as photoshop to make an optotype picture in the same proportion as the international standard eye chart, and make it into a resource The file is programmed with the computer VB programming language, completely in accordance with the requirement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/028
Inventor 刘鹏程颜河玲
Owner 刘鹏程
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