终年对峙，可使眼睛运转灵敏，去内障外翳，兼能矫正近视、远视。

All the year round confrontation, can make an eye movement sensitivity, to cataract and pannus, and correction of myopia, hyperopia.

《灵枢·脉度》指出“肝气通于目，肝和则目能辨五色”，《眼科奇书》提出“内障是气”、“治内障则主以枳壳、槟榔、郁金、香附等破气之药”。

The Miraculous Pivot points out that "Liver-qi being connected with eyes, so eyes can distinguish Wuse(five colours)if liver-qi is harmon".