Immunohistochemistry of healthy retina visualized eNOS-, nNOS-and iNOS-positive cells, all located in the inner nuclear layer (INL) and ganglion cell layer (GCL), and eNOS-positive cells were also found in vascular endothelium.

• 免疫组化结果显示,正常组eNOS、nNOS和iNOS阳性细胞均见于内核层(INL)和节细胞层(GCL),eNOS阳性细胞也分布于血管内皮层;