The fluid pressure between the iris and the cornea builds up because the trabecular meshwork (the filter on the eye's drainpipe) becomes unable do its job properly. This is a bit more complex than it sounds. Recent evidence shows that there is a functional relationship between the ciliary body, which pulls, and the trabecular meshwork, which then distends and blocks fluid outflow. Originally thought to be a passive participant, it now seems that the trabecular meshwork itself has the ability to contract and open itself for fluid drainage (Wiederholt et al., 2000). The goal of internal herbal therapy is to preserve visual function and maintain the health of the optic nerve. The ideal medicine for glaucoma should improve microcirculation to the back of the eye, nourish and moisturize the intra-eye membranes, reduce IOP (intra-ocular pressure), calm stress, and improve fluid drainage