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1. 黄点：但为何人眼看到的又总不够50mm镜头广阔呢?问题其实是出现在影像的平面大小上和镜片与人眼内的晶体之分别. 人眼所感光的地方是在视网膜(Retina)上,而感光细胞所聚集的地方也只限于一点,即黄点(yellow spot),感应色彩的锥形细胞(

2. yellow spot

2. 黄球置点：置球点 spots | 黄球置点 yellow spot | 绿球置点 green spot

3. 黄斑病：yellow rust 黄锈病 | yellow spot 黄斑病 | Yersinia pestis 鼠疫耶尔森氏菌

1. a small yellowish central area of the retina that is rich in cones and that mediates clear detailed vision

    Synonym: maculamacula luteamacular area

2. any of several fungous or viral diseases characterized by yellow spotting on the leaves