Figure 1.

Morphometric analysis of the rat retina shows surviving cells in ganglion cell layer. Left side panel of graph compares to control and treatment groups. There were significant decreases for the surviving cell number of ganglion cell layer in hyperbaric oxygen (HBO) therapy, and brimonidine (BRI) treatment groups. *** p<0.001, *p<0.05. The data showed no significant differences (p<0.05) between the memantine (MEM) treated and control groups. Right side panel of graph compares to the acute retinal ischemia (ARI) and treatment groups. There were significant decreases for the surviving cell number of ganglion cell layer in all treated groups. **p<0.01 and ***p<0.001.