Goji Berries (Gou ji zi in Chinese Herbology) are everywhere now, even my local mini-market. According to Chinese medicine they are considered Blood Tonifiers and therefore nourish and tonify liver and kidney - yin and/or blood deficiency with pain in lower back and legs, low grade abdominal pain, impotence, nocturnal emission, diabetes as well as brightening the eyes (blurred vision), dizziness and diminished acuity. More on its uses in common language in the attached article.
Link to article