My 3 year old son needs to start wearing glasses and I would like to prep him before we go to pick them to help make this a positive thing rather than a scary thing for him. I'm looking for book recommendations that would help a 3 year old understand why it's good to wear glasses. I've been reading online reviews for some books I have found but there are negative reviews on some of them and not sure if they would be suitable for his age.
Also any other tips to help prepare him would be much appreciated.