Our Doctors

Dr. Then Kong Yong
MBBS (London), FRCS (Edin), AM (MAL), MSc (London), CCT (UK)
Dr. Then obtained his Bachelor of Medicine, Bachelor of Surgery (MBBS) from St. George’s Hospital, University of London. He also has a Masters degree in biochemistry and molecular biology from King’s College, University of London. He did his basic and higher surgical training at West Midlands Region, Birmingham. In addition, he has done one year fellowship in stem cell research at Keele University. Dr. Then became a Fellow of the Royal College of Surgeon, Edinburgh in 1999 and is registered with the General Medical Council (U.K.) Specialist Registry. He was recommended by the UK Postgraduate Medical Education Training Board to the Royal College of Ophthalmologist, London to be awarded a certificate of completion of training (CCT) in 2006 after finishing his higher surgical training.
He has done two cornea and anterior segment fellowships (Birmingham and Brighton) as well as a fellowship in inflammatory eye diseases (Birmingham). He has received numerous awards including the prestigious Scottish Priory of the Order of St. John’s research fellowship in ophthalmology, an award given by the Royal College of Surgeon, Edinburgh. The award has lead to the discoveries of unique behaviour of human corneal stem cells as well as the creation of bioengineered (artificial) corneas. He has also received numerous grants for his research including a major grant from the British Biotechnology and Biological Sciences Research Council, North Staffordshire Medical Research Grant, GUP Universiti Kebangsaan Malaysia grant and industries science grant.
Dr. Then has ten years of experience as an ophthalmologist in United Kingdom before being appointed as a senior lecturer/consultant ophthalmologist at Hospital University Kebangsaan Malaysia. He was the head of the cornea and external eye diseases service in that hospital. He is still a visiting consultant for HUKM.
Dr. Then is registered with the Malaysian National Specialist Register. To date he has over 70 international presentations and over 40 publications. In 2008, he became the first ophthalmologist in Malaysia to use a patient’s tooth to save his vision (osteo-odonto-keratoprosthesis), a highly complex procedure only performed by a few surgeons around the world. In 2009, he pioneered the first corneal endothelial keratoplasty in Malaysia. In 2011, he performed Southeast Asia first cultivated oral mucosal stem cell expansion on a patient with severe chemical injury. Apart from cataract surgeries, his other interests include corneal transplantation, pterygium surgery, complex corneal diseases, contact lens related disorders, keratoprosthesis, stem cell treatment for corneal stem cell deficiency and the use of mesenchymal stem cells in translational research. He and his research team became the first in the world to have discovered mesenchymal stem cells in human cornea in 2005 and was subsequently published in 2007. His team is also one of the first in the world to have succeeded in inducing mesenchymal stem cells into nerve cells as well as human retinal cells.
He is currently attached to International Specialist Eye Centre, Brighton Healthcare as well as chief technical advisor for several biotechnology companies in Malaysia.

Dr Aster Siaw Mun Sin
MD (Ukr), Cert of Aesthetic Medicine (USA)
Dr Aster obtained her Degree in Medicine (MD) from Crimea State Medical University, Ukraine. She completed training at the Tuanku Jaafar Hospital, Seremban, and after that had many years of experience working in the Emergency and Trauma Department where she was able to handle diverse medical conditions from different specialties. She is trained and fully certified in the Advanced Life Support (ALS), Basic Trauma Life Support (BTLS) and Neonatal Resuscitation Programme.
She has worked also at private centres specializing in providing and managing direct patient care, including examinations, evaluations, assessments, diagnosis and treatment of various illnesses. During this time she has cared and catered for, including primary health care screening, for patients in all age groups, belonging to many different cultural backgrounds.
Dr Aster has a special interest in Aesthetic Medicine which is fuelled by her desire to help people of all ages to look their best at every stage of their lives. She went on to pursue her post graduate qualifications in Aesthetic Medicine from the American Academy of Aesthetic Medicine (AAAM) and is currently also a member of the Malaysian Society of Aesthetic Medicine (MSAM) , Society for Anti-Aging, Aesthetic and Regenerative Medicine Malaysia (SAAARMM) and the Medical Relief Society Malaysia (MERCY).

Dr. Merilynn Gayathri
MBBS (IMU), MRCP (UK)
Dr Merilynn is the Resident Physician at Brighton Medical Center. She was awarded the MBBS from International Medical University in Malaysia in 2006 and then continued with her postgraduate specialization in Internal Medicine. She obtained her membership of the Royal College of Physicians United Kingdom in the year 2013.
She has 10 years of working experience in several tertiary hospitals in Malaysia, and is trained to treat acute and chronic illnesses, and a vast array of medical conditions such as diabetes, hypertension, stroke, asthma, metabolic syndrome and infectious diseases. Her previous appointments include working in the Cardiac Care Unit in the Cardiology Department in Hospital Serdang.
She is focused on the prevention of cardiovascular diseases, especially in coronary artery disease, and her expertise is in risk stratifying with various cardiovascular tests. She is credentialed in performing echocardiogram & exercise stress test. Dr Merilynn is registered in the Malaysian National Specialist Register.

Emeritus Professor Soon-Keng Cheong
MBBS (Malaya), MRCP (UK), DCP (London), FRCP (Glasg), FRCP (Edin), FRCPA (Aust), FAM (Malaysia), FAM (Singapore), FASc (Malaysia), FFScRCPA (Aust)
Professor Cheong is a former member of the working group for National Standards for Cord Blood Banking and Transplantation, Ministry of Health of Malaysia. He currently is the Dean of the Faculty of Medicine and Health Sciences, University Tunku Abdul Rahman (UTAR) and the visiting Consultant Haematologist to Hospital UKM and Hospital Sungai Long.
Professor Emeritus Dr. Cheong Soon Keng
MBBS (Malaya), MRCP (UK), DCP (London), FRCP (Glasg), FRCP (Edin), FRCPA (Aust), FAM (Malaysia), FAM (Singapore), FASc (Malaysia), FFScRCPA (Aust)
Prof. Dr. Cheong received his basic medical degree (MBBS) from the University of Malaya in 1975, and obtained his postgraduate qualifications in internal medicine MRCP (UK), clinical pathology DCP with distinction (University of London), haematology FRCPA (Australia) in 1978, 1979 and 1992 respectively. He was elected to fellowship FRCP (Edinburgh & Glasgow) in 1990, FAMM (Malaysia) in 1997 and FAMS(Singapore) in 2011. He became a Fellow of the Academy of Sciences of Malaysia in 2001 for his research contribution. He was conferred Founding Fellow of the Faculty of Sciences of the Royal College of Pathologists of Australasia for his scientific contribution.


Dr. Then Kong Yong
MBBS (London), FRCS (Edin), AM (MAL), MSc (London), CCT (UK)
Dr. Then obtained his Bachelor of Medicine, Bachelor of Surgery (MBBS) from St. George’s Hospital, University of London. He also has a Masters degree in biochemistry and molecular biology from King’s College, University of London. In addition, he has done one-year fellowship in stem cell research at Keele University. Dr. Then became a Fellow of the Royal College of Surgeon, Edinburgh in 1999 and is registered with the General Medical Council (U.K.) Specialist Registry.
Dr. Then is registered with the Malaysian National Specialist Register.
Dr. Chew Wai Heng
Doctor of Medicine (MD, UKM), Master in Internal Medicine (MMED Int.Med. UKM), Professional Diploma in Medicine for the Older Person (Royal College of Physicians of Ireland, RCPI), Functional and Nutritional Medicine Practitioner (CFNMP, American Academy of Functional Health)


Dr. Lim Ying Xin
MBBS (AIMST), Professional Diploma in Aesthetic Medicine (EIU PARIS)
