17. Of these, 12 million children are visually impaired due to refractive errors, a condition that could be easily diagnosed and corrected.
其中,1200万儿童视力因屈光不正受损,这种病情易于诊断和矫正。
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18. Visuallyimpaired users cannot perceive this information, so there should be an alternative way for disabled users to be aware of the content.
视力受损的用户感觉不到这些信息,因此,应该有代替的方法能使残障用户了解其内容。
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19. This provides text for visuallyimpaired users, and for users who have turned off images in their Web browser to make pages load more quickly.
这样就为视觉上有障碍的用户,以及在Web浏览器中关闭图像以便更快地装入页面的用户提供了文本。
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20. About 65 % of all people who are visually impaired are aged 50 and older, while this age group comprises about 20 % of the world's population.
视力受损者约有65%在50岁或50岁以上,而这个年龄组约占世界人口的20%。
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21. The first step to making your application accessible to the visuallyimpaired is to provide descriptions of the components that will receive focus.
使您的应用程序对视力受损者可访问的第一步,是提供对将要接收焦点的组件的描述。
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22. Visually impaired users, for example, often need a look and feel with a high contrast between text and background, as well as large fonts and ICONS.
23. He is one of 30 visually impaired or blind people learning photography with the help of the Mexico City foundation Ojos Que Sienten, or Eyes That Feel.
24. You can use the source code from this article as is or modify it in your projects to provide more customization possibilities for visually impaired users.
您可以在您的项目中直接使用本文提供的源代码,或者适当地作些修改,以便为弱视用户提供更多的定制空间。
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25. For example, a visually impaired individual might configure his user agent (his Web browser, usually) to prefer plain text representations of images on Web pages.
例如,色弱的人可以配置他的用户代理(通常是Web浏览器),以便用文本文件表示网页上的图像。
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26. For example, a visually impaired individual might configure his user agent (his Web browser, usually) to prefer plain text representations of images on Web pages.