Figure 4. Decrease of full retinal thickness over time as observed on OCT scans. Bars (+1 standard deviation) represent retinal thickness measured on retinal sections from dogs of different ages. The Student t-test was performed to compare the mean retinal thickness at different stages of the disease. A p<0.05 was considered significant. The retinal thickness decrease was significant between 2 months and 28 months (p=8.7E07).