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Analysis and Development of Computer Fonts Easy to See for Children with Low Vision.

低视力儿童易看的计算机字体的分析与开发。

基本信息

批准号：
04451063
负责人：
KIZUKA Yasuhiro
金额：
$ 3.2万
依托单位：
The National Institute of Special Education (NISE)
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1994
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04451063/
关键词：
Low Vision Partially Sighted Fonts Reading Visibility Visually Handicapped Computer Visual Function

项目摘要

This was three-year research project aiming at the analysis of computer fonts that can be used conveniently in educational setting and, at the same tim, are easy to see for children with low vision. Based on the analysis, fonts were developed on an experimental basis.The research was carried out from three different approaches.A.Analysis of fonts through simulated condition of low vision :The decline in contrast senditivity was simulated and its effect on reading efficiancy was examined. The decline in contrast sensitivity is caused by cloudy ocular media due to such disease cataract and corneal leukoma and it results in the impediment to visibility. A checklist was mede to evaluate the simulated decline in contrast sensitivity. Another checklist was also made to evaluate the readability of different fonts.B.Analysis of factors that influence the reading of children with low vision :The font is not the sole factor that influence the reading efficiency in children with low vision. Unless other factors are clarefied, the influence of fonts cannot be specified. For this reason, different font sizes and presentation conditions such as the length of a line were examined to see the effect on reading efficiency.C.Research on the measurement of reading efficiency of children with low vision :Different methods of measuring the influence of fonts on the efficiency of reading were examined. As a result, in order to make effective evaluation, a new evaluation system using computer was developed on an experimental basis to measure the reading efficiency of people with low vision. Improvements were made on the system after trials.

这是一个为期三年的研究项目，目的是分析计算机字体，可以方便地使用在教育环境中，同时，也容易被低视力儿童看到。在此基础上，进行了实验性的字体开发，研究从三个方面进行：（1）通过模拟低视力条件的字体分析：模拟对比敏感度的下降，考察其对阅读效率的影响。对比敏感度的下降是由于白内障和角膜白斑等疾病引起的混浊的眼介质引起的，并导致视力障碍。采用检查表评估对比敏感度的模拟下降。B.影响低视力儿童阅读效率的因素分析：字体并不是影响低视力儿童阅读效率的唯一因素。除非明确说明其他因素，否则无法指定字体的影响。为此，研究了不同的字体大小和呈现条件（如行的长度）对阅读效率的影响。C.低视力儿童阅读效率测量研究：研究了测量字体对阅读效率影响的不同方法。因此，为了进行有效的评价，在实验的基础上开发了一种新的评价系统，使用计算机来测量低视力人的阅读效率。经过试验，对系统进行了改进。