The above sclera shows some venous insufficiency – the blue marking in the sclera to the left of the iris. This means that there is insufficient levels of oxygen in the bloodstream, an inherited tendency to venous system inadequacy and can cause some stagnation and circulation problems. Symptoms may include sluggishness, cold hands and feet due to poor circulation, poor memory and a ‘foggy’ head. Eating a diet in oxygen rich plants, along with supplementation of CoQ10 can help to oxygenate the body, and will cause the blue to fade and the sclera to return to its normal colour.