1. From the Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Sciences Key Laboratory, Beijing, China;
2. the National Institute for Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing, China;
3. the Jean Mayer U.S. Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts;
4. the Department of Mathematics and Computer Science, Faculty of Science and Technology, Prince of Songkla University, Pattani Campus, Muang Pattani, Thailand; and
5. the Sekwa Eye Hospital, Beijing, China.