You will need to meet minimum medical standards, but in most cases wearing glasses won’t be a problem. In fact, many airline pilots wear glasses. You can wear glasses or contact lenses so long as your vision is corrected to 20/30 or better. To obtain a NZ CAA Class 1 or 2 medical, you must visit an approved aviation medical examiner. They are listed on the CAA website at www.caa.govt.nz.
For any health issues, we recommend you consult an aviation medical examiner.