膚色、髮色及瞳孔顏色均是由黑素細胞(Melanocyte)所產生的黑色素(Melanin)而定。518Please respect copyright.ＰＥＮＡＮＡ4o9ZYttXQ0
然而，負責膚色髮色與負責瞳孔顏色的黑素細胞卻有著一道顯著不同的分別。518Please respect copyright.ＰＥＮＡＮＡksh192CSou
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（圖2）黑素細胞所產生的黑色素，會儲存在名為黑色粒子的細胞器官裡頭。518Please respect copyright.ＰＥＮＡＮＡFzuAjPTNnW
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位於皮膚下的黑素細胞，會釋出黑色粒子到髮囊及皮膚細胞，賦予皮髮顏色。518Please respect copyright.ＰＥＮＡＮＡCf12gS5p60
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而位於虹膜(Iris)的黑素細胞，則不會釋出黑色粒子到細胞外部，而是把它儲存在細胞內。518Please respect copyright.ＰＥＮＡＮＡWscckIMwnP
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（圖3）當光線進入眼睛的虹膜，內部蛋白質所折射及吸收的波長便會呈現出瞳孔的顏色。518Please respect copyright.ＰＥＮＡＮＡ4V8RYVMkGE
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瞳孔之所以呈藍色，並不是有著藍色素的物質，而是純粹因為虹膜內的黑色素稀少，最終折射出藍色波長的光線。518Please respect copyright.ＰＥＮＡＮＡdWYViBxKY6
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虹膜越多黑色素的話，瞳色便會越漸啡黑。518Please respect copyright.ＰＥＮＡＮＡqMIrCM7dMC
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而患有白化病(Albino)的人士，基於缺乏黑色素，光線折射出眼睛內血管的顏色，因而呈粉紅色狀。518Please respect copyright.ＰＥＮＡＮＡ8Pja89s6rk
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延伸閱讀:518Please respect copyright.ＰＥＮＡＮＡMtNW4IVfeU
深入淺出–以中性pH7的方式染髮518Please respect copyright.ＰＥＮＡＮＡs66ExYloJp
- 分享自 LIHKG 討論區518Please respect copyright.ＰＥＮＡＮＡZLIFhzFZfN
https://lih.kg/2268429518Please respect copyright.ＰＥＮＡＮＡyIJVmN6nTg
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如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。518Please respect copyright.ＰＥＮＡＮＡSGzUH3zIGI
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Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc518Please respect copyright.ＰＥＮＡＮＡSdEXGAJF4j
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。518Please respect copyright.ＰＥＮＡＮＡ2bl3u7UIuB
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Link:518Please respect copyright.ＰＥＮＡＮＡaalZH3U9lf
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio518Please respect copyright.ＰＥＮＡＮＡOGikNq0cUi
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除非Facebook及IG重開侵侵的account，否則我的IG將不會再作更新，只會寄居本土LIHKG及Penana。518Please respect copyright.ＰＥＮＡＮＡd5OcEcLcWo
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Ref1:https://www.sciencedirect.com/science/article/pii/S0168952504001593?via%3Dihub#TBX1
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