快樂小藥師 Im pharmacist nichts glücklich

眼藥水紅色和透明的你可能見過，但是黃色的可能就不常看到了。

先複習一下，在繼續看下去吧：

眼藥水為何是紅色的？

好的，不繞圈圈，直接來看今天的主角：

視樂優 ノアールUV
 

光從包裝上面，就可以看到他的主要訴求，就是針對UV造成的傷害

成分也很貼心寫了英文，可以比較容易查詢

跟其他眼藥水做一個比較：

左邊是人工淚液，中間是含有B12的眼藥水，右邊就是今天的主角

應該很明顯可以看到顏色的差別，至於為何會是黃色的呢？

主要是因為添加了這一個成分：

根據日本藥局方的解釋：

他本身就是一個黃色粉末，容易遇光分解，所以保存時，千萬要記得放進收納袋裡面

至於功能，你可以先參考一下下面這幾個連結：

黃斑部病變

看綠色為何對眼睛好？
關於葉綠素及葉黃素還有類胡蘿蔔素
 

由此可以推論出一個大概，就是利用flavin本身的黃色素，去抵消光線中的藍光傷害

不過類黃質點在已經被傷害過的眼睛上面，有沒有效果，就很難說了。

他的理論基礎其實是這個：

FAD(flavin adenine dinucleotide)會在身體裡面和B群有相關反應：
 

圖解藥理學-維他命B群作用位置

Riboflavin in combination with UV light has been shown to be effective in reducing the ability of harmful pathogens found in blood products to cause disease. When UV light is applied to blood products containing riboflavin, the nucleic acids in pathogens are damaged, rendering them unable to replicate and cause disease. Riboflavin and UV light treatment has been shown to be effective for inactivating pathogens in platelets and plasma, and is under development for application to whole blood. Because platelets and red blood cells do not contain a nucleus (i.e. they have no DNA to be damaged). The technique is well-suited for destroying nucleic acid containing pathogens (including viruses, bacteria, parasites, and white blood cells) in blood products.
 

referance：

Ruane, PH; Edrich, R; Gampp, D; Keil, SD; Leonard, RL; Goodrich, RP (2004). "Photochemical Inactivation of Selected Viruses and Bacteria in Platelet Concentrates Using Riboflavin and Light". Transfusion 44 (6): 877–885
 

Goodrich RP, et al., “The Mirasol PRT System for Pathogen Reduction of Platelets and Plasma: An Overview of Current Status and Future Trends.” Transfusion and Apheresis Science 2006; 35 (1): 5-17.
 

Goodrich RP, et.al,Chapter 5:“The Antiviral and Antibacterial Properties of Riboflavin and Light: Applications to Blood Safety and Transfusion Medicine.”Flavins: Photochemistry and Photobiology, Vol. 6, 2006, Royal Society of Chemistry; Cambridge, United Kingdom. E Silva and AM Edwards, editors.
 

Kumar, V; Lockerbie, O; Keil, SD; Ruane, PH; Platz, MS; Martin, CB; Ravanat, JL; Cadet, J et al. (2004). "Riboflavin and UV-Light Based Pathogen Reduction: Extent and Consequence of DNA Damage at the Molecular Level".Photochemistry and Photobiology 80: 15–21.