Figure 1. Intraocular pressure changes in the RGS2^−/− mice. Diurnal IOP was measured in both right and left eyes in conscious animals, using a rebound tonometer. Measurements were performed five times on the same animals at weekly intervals A-E: IOP changes in the RGS2^−/− mice were compared with those of wild-type (WT) mice recorded over five different days. F: IOP changes between the wild-type and RGS2^−/− mice, based on the average of five independent measurements, are shown in panel A-E. Each error bar represents the mean±SEM (n=8–10 eyes). Asterisk represents p<0 0.05.