Ms Cher Huiyun Joanna is currently an Optometrist at Hirocon. She received her Bachelor of Science in Optometry and Master of Philosophy from University of Manchester.
Prior to joining Hirocon, she worked as both Clinical and Retail Optometrist at private practices. She has also conducted a cross-sectional studies at Khoo Teck Puat Hospital. Her research is about macular pigment in different ethnic groups.