Experimental Study on Effect of Ginkgo Biloba Extract on Form-Deprivation Myopia in the Chick / 中成药

Objective: To observe the effect of Ginkgo Biloba extract (EGb) on Form deprivation Myopia (FDM) in the chick. Methods: 30 two day chicks were divided into three groups (Control Group, Drug Group Ⅰ, Drug Group Ⅱ). All of them were monocularly deprived by suturation of eyelids. Axial length was measured by A Scan ultrasonograph, the posterior cartilaginous sclera, the sclera fibrous and retina were observed under the light microscope. Results: Both refraction and axial eye length were changed by form deprivation in control group. refraction change ( P