1. Eye Institute of Shandong University of Traditional Chinese Medicine; Jinan Shandong China
2. Medical School of Ophthalmology and Optometry; Shandong University of Traditional Chinese Medicine; Jinan Shandong China
3. The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine; Jinan Shandong China
4. Department of Ophthalmology; Medical Faculty Mannheim of the Ruprecht-Karls-University Heidelberg; Mannheim Germany