Prof Mehta is executive director of the Singapore Eye Research Institute, a Distinguished Professor in Corneal & External Eye Disease and Refractive Department at Singapore National Eye Centre and vice-president of international relations for the American Corneal Society. He has won 70 awards for his clinical and research work, featured in several power lists and is regarded as one of the top corneal and refractive surgeons globally. His research work has generated 18 patents, five of which have been commercialised. He has pioneered Refractive Lenticule Extraction (ReLEx) and has patents on technique of lenticule cryopreservation, performing the first studies on animals. This has been licensed and he established the first approved lenticule bank in the world. He described the novel use of the femtosecond laser in ocular surface surgery (e.g. pterygium), which has the CE mark. Prof Mehta has published more than 520 peer-reviewed publications and 24 book chapters.