WHO coordinates the international efforts to reduce visual impairments.
世卫组织协调减少视力损害的国际努力。
The study involved 56 children, 38 with various visual impairments and 18 with normal vision.
这项研究有56个儿童参加，其中38有各种各样的视觉损害，18个视觉正常。
Barring visual impairments, we perceive our surroundings via a video camera-like, wide-angle lens.
除了有视觉障碍的人外，我们都是在透过一个类似于视频摄像机的广角镜头来感知周围的环境。
Most users with visual impairments will need a screen reader with higher functionality for daily use .
大多数患有视觉障碍的人需要更高功能的屏幕阅读器来满足日常所需。
Two of the most common user characteristics that might affect your design are visual impairments and physical impairments.
将影响你的设计的两个最常见的用户特征，是视觉和身体上的缺陷。
Only 18 percent of people who have visual impairments are totally blind. Most are able to differentiate between light and dark.
只有百分之十八视力严重受损的人永久失明，大部分盲人能够区分光明和黑暗。
Audible computer output is a useful alternative and accessible presentation mechanism, particularly for people with visual impairments.
计算机音频输出是一个有用的备用和可访问呈现机制，对于有视力障碍的人尤其如此。
Therefore, in this thesis, a new theory, coexistence theory, is proposed to explain the fact that both phenomena of deficiency and compensation can be found in people with visual impairments.
因此，研究者试图提出一种新的理论——“并存说”，即对于视障者来说，感知觉的缺陷现象与补偿现象是同时存在的。
The term physical or mental impairment includes, but is not limited to, such diseases and conditions as orthopedic, visual, speech, and hearing impairments;
身体或精神损害包括但不限于外科疾病、视觉损害，聋哑；
The term physical or mental impairment includes, but is not limited to, such diseases and conditions as orthopedic, visual, speech, and hearing impairments;
身体或精神损害包括但不限于外科疾病、视觉损害，聋哑；
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