Head of the Corneal Service Singapore National Eye Center (SNEC). Head of the Tissue Engineering and Cell therapy group at the Singapore Eye Research Institute and Professor with DUKE-NUS GMS. Named Professor of Clinical Innovation at SNEC/SERI. Director of Education, Singhealth Transplant and Deputy Executive Director at SERI. He has published >390 peer-reviewed papers and 20 book chapters. Current H-index 52, citations >9640. He has given >250 invited plenary, symposium and named lectures globally with over 50 national and international awards. His research work has generated 15 patents, 5 of which have been licensed to companies. Has trained 26 international fellows, 5 masters students and 8 PhD students. He leads a clinical service and runs a research program comprising of clinical and translational studies. His work is focused on corneal transplantation, femtosecond laser technology, corneal imaging, corneal infections, corneal refractive surgery, keratoprosthesis surgery and corneal genetics.