There is no single 'right age' for LASIK — but there are clear medical considerations at different life stages.
Under 18: LASIK is generally not recommended as the eyes are still developing and prescription is not stable.
18-21: LASIK is possible if the prescription has been stable for at least 12 months. Many defence aspirants undergo LASIK in this window.
21-40: the age range in which LASIK is most commonly performed. Prescription is typically stable and the cornea is healthy.
40-55: LASIK is still possible, but presbyopia (need for reading glasses) becomes a consideration. Monovision LASIK or refractive lens exchange may be discussed.
55+: if cataracts are forming, cataract surgery with advanced IOLs may be a more suitable option than LASIK.