• AIM: To observe the protective effects of qingguangan granule (QGAG) on optic nerve axons and retinal ganglion cells in rabbit eyes with acute ocular hypertension. • METHODS: Fourty-eight rabbits were divided into two groups: treatment group and control group(24 in each). The acute ocular hypertension (60mmHg) models were established by forcing perfusion of normal saline solution into the anterior chamber, the other eye in experimental group which was maintained at basic intraocular pressure by the same method was regarded as normal control...