Focus on the shape. The shapes of the eyes are quite different in comparison. My mother had vanity surgery to correct the same condition of the Biden on the left, removing the extra folds of skin around her eyes. it worked for a while to open them up, but then the folds came back because surgery couldn't overcome her genetics. The old Biden on the right should be showing the same progression, even if he had surgery to correct the condition. Right Biden's irises are also larger than left Biden's irises. That is not the progression of age, and it is not possible. The eyes shrink as people grow older. They do not get bigger.