Unfortunately this is very simple: liver in Chinese medicine is linked to vision as organ of sence and both are controlled by energy of "Wind". Such vivid link of diesase as cancer and vision problems may indicate Chinese medicine may help fight cancer. I can't guide specially for Chinese medicine cancer treatment but you may visit: http://acupunctureforcancerideas.blogspot.com/2009/12/joints-and-cancer-treat...
Su-jok is much more simple and some methods even possible for self-treatment as above. There is safe and even easier method: