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。517Please respect copyright.ＰＥＮＡＮＡVnesSqSZT1
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。517Please respect copyright.ＰＥＮＡＮＡRBjfP3Gopt
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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。517Please respect copyright.ＰＥＮＡＮＡALD03FLHpO
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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。517Please respect copyright.ＰＥＮＡＮＡ7svc8lk5Li
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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。517Please respect copyright.ＰＥＮＡＮＡufDAypbMF5
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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。517Please respect copyright.ＰＥＮＡＮＡQxxy39XH87
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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。517Please respect copyright.ＰＥＮＡＮＡiyYpwXb6sx
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虹膜越多黑色素的話，瞳色便會越漸啡黑。517Please respect copyright.ＰＥＮＡＮＡzXkDBVD6rF
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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。517Please respect copyright.ＰＥＮＡＮＡ2GwILdcOii
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延伸閱讀:517Please respect copyright.ＰＥＮＡＮＡUNZBIbfy2t
深入淺出–以中性pH7的方式染髮517Please respect copyright.ＰＥＮＡＮＡTxTthUW0O1
- 分享自 LIHKG 討論區517Please respect copyright.ＰＥＮＡＮＡkXOWOSsKoX
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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。517Please respect copyright.ＰＥＮＡＮＡMzmql567LN
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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/toc517Please respect copyright.ＰＥＮＡＮＡnD14f9WBmF
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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。517Please respect copyright.ＰＥＮＡＮＡKGcoEGuJO9
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Link:517Please respect copyright.ＰＥＮＡＮＡcYw1Va7nvt
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio517Please respect copyright.ＰＥＮＡＮＡZ8iRZOgFej
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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。517Please respect copyright.ＰＥＮＡＮＡB7iTu63D8x
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Ref1:https://www.sciencedirect.com/science/article/pii/S0168952504001593?via%3Dihub#TBX1
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