When Danny is giving Larry a gift for being a great brother and friend, Larry comes forward and takes the bag from Danny and gives him a hug. After the hug, the next shot is of Larry taking the bag from Danny again. So, he takes the bag twice.
The vision center of the brain is located in the occipital lobe at the back of the head. Danny's operation was done on the temporal lobe behind the ear, which is closer to the memory and language section of the brain.
When Leeza follows Danny out from the clinic for the first time, Danny claims his brother runs a limo service called Larry's Limos. But the limo service is actually called Lorenzo's Limo, which you can see in the many shots of the limo.