Dr LiYim studied Medicine at the University of Glasgow and gained full registration with the General Medical Council, UK after his internship at the Victoria Hospital Glasgow and the Royal Berkshire and Battle Hospitals, Reading 2001. He worked as a senior house officer in Accident and Emergency, Leicester Royal Infirmary, ENT in Southampton and Neurology in Glasgow before starting Ophthalmology training 2003.

Dr LiYim was admitted as a Member of the Royal College of Ophthalmologists, UK (MRCOphth) in 2005 and as a Fellow (FRCOphth) in 2012.

Towards the end of his ophthalmology speciality registrar training, he underwent advanced subspeciality training in Glaucoma in Glasgow 2011-12. He achieved his Certificate of Completion of Training (CCT) awarded by the General Medical Council for specialist registration in 2012.

After his CCT he had further subspeciality training in Vitreoretinal surgery at the University Hospital Ayr before working as a Consultant , University Hospital Ayr in 2013.