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。388Please respect copyright.ＰＥＮＡＮＡtWT4Nm6nJ0
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。388Please respect copyright.ＰＥＮＡＮＡ1RvNV3tHcw
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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。388Please respect copyright.ＰＥＮＡＮＡTCopuaYn2G
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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。388Please respect copyright.ＰＥＮＡＮＡbdKi9y7tTF
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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。388Please respect copyright.ＰＥＮＡＮＡITpQC1xCU2
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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。388Please respect copyright.ＰＥＮＡＮＡBcUvNlLqPK
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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。388Please respect copyright.ＰＥＮＡＮＡ1bDNNvXJLj
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虹膜越多黑色素的話，瞳色便會越漸啡黑。388Please respect copyright.ＰＥＮＡＮＡGGxRYseSqk
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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。388Please respect copyright.ＰＥＮＡＮＡHs399kvfXm
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延伸閱讀:388Please respect copyright.ＰＥＮＡＮＡFWnUCmcHmw
深入淺出–以中性pH7的方式染髮388Please respect copyright.ＰＥＮＡＮＡgeJZqanFKJ
- 分享自 LIHKG 討論區388Please respect copyright.ＰＥＮＡＮＡ6raD41Sfow
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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。388Please respect copyright.ＰＥＮＡＮＡY4wNEVik5r
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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/toc388Please respect copyright.ＰＥＮＡＮＡmq7DBx3yO5
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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。388Please respect copyright.ＰＥＮＡＮＡlUmyduJ94Y
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Link:388Please respect copyright.ＰＥＮＡＮＡMWJlwAmS5e
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio388Please respect copyright.ＰＥＮＡＮＡZ83rrr5efK
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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。388Please respect copyright.ＰＥＮＡＮＡ1fz04P8NaD
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Ref1:https://www.sciencedirect.com/science/article/pii/S0168952504001593?via%3Dihub#TBX1
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