We found out this week that Charlie has progressive retinal atrophy (PRA). It's a disease that lead to blindness in dogs. The retina is the structure affected in PRA. This important part of the eye receives the light gathered and focused by the other eye structures. It takes the light and essentially converts it into electrical nerve signals that the brain, via the optic nerve, interprets as vision. The retina contains photoreceptors, called rods and cones, which help the animal see in darkness (rods) and see certain colors (cones).
I am learning how to live with a blind dog and understanding that we will love him even more than before.
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