Yes, vitamine K can be helpful for the eyes which are always used under the dark light. It will be harmful for the eyes when using computers for a long time because eyes at that time mainly depends on the retina which is the synthesis of vitamin K. Eating more food containing vitamin K will be good to the eyes. Vitamin K is much from milk, egg roll, etc. What's more, the synthetic vitamin K can not only compose the synthetic ShiWang to take off the need rhodopsin, but also maintain the health of the eye by preventing dry eyes.
It is said that vitamin K does help to whiten the darkness under your eyes. In the mean time, vitamin A also serve the same function. Sometimes people get darkness near their eyes, and don't know what could be done to fix the problem, and then vitamin K is the best helper. It will accelerate the blood transport near your eyes and consequently darkness will disappear. However, you should not rely on it , you also have to pay more attention to how to avoid getting darkness in the future right?
Yep, it could help relieve dark circles under eye area. In fact, dark under-eye circles could be caused by various reasons, but the essential one is poor blood flow. And there is more melanin production in subjects with that. Vitamin K could be mainly found in green leafy vegetables, meats, fish. It has the function of blood clotting proteins to keep blood flow, and has the function of Gas6, a specialized protein that regulates cell growth and cell proliferation. Hence, vitamin K could benefit for treating dark circles under the eye area. However, it is an essential vitamin, not the only vitamin is needed for treating dark circles.