I read Even Fairies Need Glasses in my ophthalmologist's waiting room while waiting for my annual checkup. The Igloo Books edition, with author's and illustrator's names not listed. I found author Sienna Williams and illustrator Natalie Smillie online. Both authors live in the UK, as do all three YouTube readers ("glosses" for glasses).
Plot summary: A fairy child starts fairy school. She doesn't want to wear glasses for fear of embarrasment and bullying. All her spells go awry. She finally gets glasses, and after that spells well.
The story is told in lively verses:
Cássie was a fáiry who was quíte misunderstóod.
The próblem was her éyesight, which wásn't very góod.
It máde her very clúmsy, and howéver hard she tríed,
the mágic spells she cást seemed to cáuse tróuble far and wíde.
Rimed dipodic tetrameter couplets, with strong medial caesura, an underappreciated very traditional English verse form going back to Beowulf.
I would have loved to read this book to my three daughters and three grandchildren, but at 85 I'll have to take the favorable reviews by three and four year old girls you've read already.
I was enthralled by the book, and also appalled. I found two similar books for girls, none for boys. ("Douglas, You Need Glasses" is about a dog.) I got my first glasses (I'm nearsighted) when I was eight years old, bullied by my father. i needed such a book then, or maybe my father did.