Joe’s ophthalmologist says that he has astigmatism and slight nearsightedness. That’s not enough to explain why he doesn’t “track” objects very well, or see more than a few feet away, but he’s supposed to try glasses to correct them anyway.
The doctor thinks that making a less blurry view for the brain to interpret might stop the wiggling and crossing of his eyes, the two things that are probably making it hard for him to see.
How cute is this!