1. State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic CenterSun Yat‐sen University Guangzhou China
2. Department of Ophthalmology and Surgery, Centre for Eye Research AustraliaUniversity of Melbourne Melbourne Victoria Australia
3. Ophthalmology, Department of Surgery, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
4. Melbourne Sexual Health CentreAlfred Health Melbourne Victoria Australia
5. Central Clinical School, Faculty of MedicineMonash University Melbourne Victoria Australia
6. Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China