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。404Please respect copyright.ＰＥＮＡＮＡsOUxb6q03A
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。404Please respect copyright.ＰＥＮＡＮＡEqx7J1yWpQ
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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。404Please respect copyright.ＰＥＮＡＮＡAxU2S3yvdc
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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。404Please respect copyright.ＰＥＮＡＮＡEQKdK3lbCB
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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。404Please respect copyright.ＰＥＮＡＮＡJjbxSBOV4a
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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。404Please respect copyright.ＰＥＮＡＮＡzvD0l7WcTx
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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。404Please respect copyright.ＰＥＮＡＮＡEyDYM3PV9k
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虹膜越多黑色素的話，瞳色便會越漸啡黑。404Please respect copyright.ＰＥＮＡＮＡU2Hxk9h9jO
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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。404Please respect copyright.ＰＥＮＡＮＡV3uDVBeUnf
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延伸閱讀:404Please respect copyright.ＰＥＮＡＮＡ7cx4Xn7N15
深入淺出–以中性pH7的方式染髮404Please respect copyright.ＰＥＮＡＮＡXNjc7BydB8
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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。404Please respect copyright.ＰＥＮＡＮＡJy0axy14ZP
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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/toc404Please respect copyright.ＰＥＮＡＮＡNLv41x1dJr
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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。404Please respect copyright.ＰＥＮＡＮＡ51Z8etLJoZ
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Link:404Please respect copyright.ＰＥＮＡＮＡPvMVLdh7GE
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio404Please respect copyright.ＰＥＮＡＮＡmzsYtYUIRH
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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。404Please respect copyright.ＰＥＮＡＮＡRLgqp3KRM8
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Ref1:https://www.sciencedirect.com/science/article/pii/S0168952504001593?via%3Dihub#TBX1
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