1. He Eye Specialist Hospital, Shenyang, China.
2. The Second Affiliated Hospital of Dalian Medical University, Dalian, China.
3. He University, Shenyang, China.
4. Cathedral Eye Clinic, Northern Ireland, United Kingdom.
5. School of Mathematics and Physics, Queens University Belfast, University Road, Belfast, Northern Ireland, United Kingdom.
6. Department of Ophthalmology, Medical University of Innsbruck, Innsbruck, Austria.