段昌敏教授任教于美国纽约州立大学视光学院多年，获荣誉教授称号；大纽约地区段昌敏眼科中心创办人、主任，浙江大学医学院附属第二医院眼科中心特聘专家，天津医科大学眼视光学院客座教授，国际角膜塑形学会中国委员会委员兼行政主管，国际角膜塑形学会亚洲分会董事会成员,美国眼科医生接触镜协会会员,美国视光协会会员发展委员会中国委员                         
 
毕业于浙江医科大学，中国第一批眼科临床屈光学研究生。在美国先后获视觉科学硕士，视光学博士，美国角膜塑形学会资深会员。专长小儿眼科、儿童视觉发育、近视眼防治、视功能紊乱诊断及处理。多年来致力于角膜塑形与近视眼防治的教学、科研和临床工作。以中、英文在国内和国际学术会议的演讲多次,获杰出发言奨。在国内和国际学术期刊发表多篇论著。奔走与中、美国及各国之间，促进新兴的中国视光业迅速发展与国际接轨。
 
Helen Changmin Duan, OD, MS, FIAO
Assistant Clinical Professor, Emeritus, the State University of New York, College of Optometry,
Founder and Center Director of Dr. Duan and Associates, the metropolitan area of New York,
On faculty of Eye Center, the Second Affiliated Hospital, Zhejiang University, School of Medicine,
Visiting Professor, Eye Hospital, Tianjin Medical University,
Executive Administrator, IAO China Committee
Board Member, IAOA (International Academy of Orthokeratology, Asia Section)
International Committee China Representative, College of Optometrists in Vision Development (COVD)
Member of Contact Lens Association of Ophthalmologists (CLAO)
Member of Membership Development Committee, American Optometric Association (AOA)
 
Dr. Duan graduated from Zhejiang Medical University and completed her graduate education in “Clinical Refraction”. She was awarded Master in Vision Science, Doctor of Optometry and Fellow of America Academy of Orthokeratology in US. She practices optometry specialized in pediatric eye care, visual system development, myopia control, visual function disorder through teaching, research and patient care. Along with her publications, she has been presenting and lecturing in English and Chinese at numerous national and international conferences. Through her frequent trips and connections in the US, China and the rest of the world, she has provided many opportunities for international communications for Chinese eye care professionals