an email to vice principal, hall manager and lectures about your absence for a class because of an eye appointment

Subject: Absence from class due to eye appointment

Dear [Vice Principal's name], [Hall Manager's name], and [Lecturer's name],

I am writing to inform you that I will be absent from [class/lecture name] on [date] due to a previously scheduled eye appointment. I apologize for any inconvenience this may cause and will make sure to catch up on any missed work or material.

I have already informed my lecturer about my absence and have arranged to obtain any missed notes or assignments as soon as possible.

Thank you for your understanding and please let me know if there is anything else I need to do to make up for my absence.

Sincerely,
[Your name]