ICD-11 编码查询_国际疾病分类第 11 版中文版_在线疾病编码检索工具
9D43

视觉对比敏感度损害

Impairment of contrast vision

上级条目
视觉功能损害
层级
3 级

定义

对比敏感度是指区分相邻表面之间亮度微小差异的能力。 峰值对比敏感度指的是对大刺激物可以辨别的最小差异。 对于较小的物体,如许多日常生活活动中涉及的物体,对比敏感度与视力和视野相互作用。更好的对比度使较小的细节清晰可见。对于较强的刺激,视野会更大。

Contrast sensitivity refers to the ability to distinguish small differences in brightness between adjacent surfaces. Peak Contrast sensitivity refers to the smallest differences that are discernible for large stimuli. For smaller objects, such as those involved in many Activities of Daily Living, contrast sensitivity interacts with visual acuity and visual field. Better contrast makes smaller details visible. The visual field is larger for stronger stimuli.

索引词 可用于检索该条目的同义词与别名

  • 视觉对比敏感度损害
  • 视觉对比度障碍
  • 中度视觉对比敏感度损害
  • 极重度视觉对比敏感度损害
英文词条(3)
  • Impairment of contrast vision
  • Moderate impairment of contrast vision
  • Profound impairment of contrast vision

后组配轴 Postcoordination

后组配是在主干编码之后追加的可选扩展轴(如侧别、具体解剖部位、严重程度),用于把「部位 + 侧别 + 病程」等细节一次表达完整。只有标注「必填」的轴在组合编码时必须给出,其余可留空。

  • 侧别laterality可选