... when in urgent need. It should be wore on the eye when used.Purpose: This product can improve ocular microcirculation, ... prevent vision decline, so it has an efficacy of lightening eye and refreshing brain. Alleviate swirl and dazzle, forgettery, and ... lighten migraine, neurasthenia and insomnia of brain fatigue syndrome. Remove eye bags and black eyes, improve the brightness and elasticity of ...