The importance of vision: most of what we learn is through our eyes, keep eyes healthy and safe, no eye replacements, and discussion of how eyes can become hurt/injured.
Why some people wear glasses: purpose of glasses, role of eye doctor, purpose of and importance of eye examinations, what eye charts look like.
Eye health and safety: no eye replacements if eye gets injured, discussion of things that are harmful to eyes, discussion of ways to keep eyes safe.