The main symptom is a red blood streak extending from the inner canthus of the eye to the white eye area. The main cause is heat in the heart meridian, which can be either damp heat or deficiency heat. If the cause is solid heat, the red veins in the inner canthus are mostly red and thick, and are accompanied by heart trouble, thirst, red tongue, ulcers on the tongue, and yellow urine. The cause can also be inflammation of the deficiency fire in the heart meridian, mainly related to heart yin deficiency, mainly manifested as the inner canthus red veins are light in color and thin, such patients should be given treatment to nourish heart yin, oral tonic heart soup, also can choose astragalus, dang ginseng, red peony, forsythia, and farmer’s root decoction.