Probably the cloudy iris. The lymph system helps collect and move out toxins. Exercise and dry brushing with a natural bristle brush or hot towel can help drain the lymph nodes.
In the opinion of some natural health specialists excising cancerous lymph nodes is counterproductive, because the lymph nodes isolate the damaged cells and protect the rest of the body. What should be done instead is to help the lymph system work more optimally. Akaline producing diet is one approach plus gentle exercise and dry brushing or massage with a warm face cloth.