Andrew (my 6 year old) just had his 3 month check and the specialist said he is fine and will see him in a year (just because we can see him) and if need be get a new script.
Technology has changed from when I got glasses and even my sister who got them a good 20 years ago now.
Josh's (my 3 year old) glasses went through preschool today as he took them off outside and one of the little girls found them in the bark area. No scratches or anything on them so they are good quality ones.
Both my boys have the Mr Men glasses specsavers have.