视力损害
Vision impairment
- 上级条目
- 09 视觉系统疾病
- 编码区间
9D90-9D9Z- 层级
- 2 级
定义
当眼睛状况影响视觉系统及其一个或多个视觉功能时，会导致视力受损。通常，基于人口调查仅使用视力测量视力损害，严重程度分为轻度、中度或重度远视力损害或失明，以及近视力损害。然而，临床上，还经常评估其他视觉功能，如人的视野、对比敏感度和色觉。
A vision impairment results when an eye condition affects the visual system and one or more of its vision functions. Typically, population-based surveys measure visual impairment using exclusively visual acuity, with severity categorized as mild, moderate or severe distance vision impairment or blindness, and near vision impairment. However, in the clinical setting, other visual functions are also often assessed, such as a person’s field of vision, contrast sensitivity and colour vision.
子条目 共 8 条
后组配轴 Postcoordination
该条目未定义后组配轴，直接使用上面的编码即可。后组配是在主干编码之后追加侧别、具体解剖部位、严重程度、病因等细节的可选组合方式，不是必填项。