It's ok being 31 years old and having canthopexy done ?, and how much does it cost ?
I think it depends on what you need doen.Generally a canthopexy is not part of an average blepharoplasty.so without a bit of hsitroy and photos it would be hard to tell.
A canthopexy is performed if there is a malposition of the corner of the eye or laxity of the lower eyelid canthal tendon. Your surgeon is in the best position to understand if you need the surgery or not.