Aircraft Flight Operation Regulations Article 175
When a medical certificate can be obtained only with correcting lenses, the applicant may be assessed as fit provided that such correcting lenses are worn during the exercise of the privileges of the license or rating applied for or held; and, in addition, a pair of suitable correcting spectacles is kept readily available during the exercise of the privileges of the applicant’s license.
中文原文 航空器飛航作業管理規則第175條
飛航組員體格檢查及格證上規定需配戴校正眼鏡者，飛航時應予使用，且另應攜帶備份之校正眼鏡一付。