
Ophthalmology
Dr. Then Kong Yong is a Consultant Ophthalmologist at ISEC Mid Valley whose expertise is backed by extensive and advanced training in the United Kingdom. He earned his medical degree from St. George's Hospital, University of London, and also holds a Master's degree from King's College, London. Dr. Then spent a decade practicing as an ophthalmologist in the UK, where he completed his higher surgical training and became a Fellow of the Royal College of Surgeons of Edinburgh. Further solidifying his credentials, Dr. Then undertook multiple subspecialty fellowships in the UK, including two in cornea and anterior segment surgery and another in inflammatory eye diseases in Birmingham and Brighton. He also completed a fellowship in stem cell research at Keele University. Dr. Then is a pioneer in his field, known for being the first surgeon in Malaysia to perform a highly complex procedure using a patient's tooth to restore vision. Patients seeking a specialist with world-class UK qualifications and profound experience in complex corneal diseases, cataract surgery, and stem cell treatment will find an exceptionally skilled and trustworthy expert in Dr. Then.
Shannen Khor
October 28, 2025 at 3:45 PM
I took my parents to consult Dr Then on their eyes. They were very happy with his meticulous explanation and assurance on their eyes condition and how the treatment plan was being suggested to my dad. Dr Then was awesome. Front desk was welcoming and the payment counter was absolutely helpful. Well done and keep it up Isec!
Janet Onn
October 28, 2025 at 3:42 PM
Dr Then expertise was evident throughout the visit. He explained the procedures in a way that was easy to understand and made sure my dad was comfortable every step of the way. His knowledge and confidence reassured me that my dad was in good hands.

Kuala Lumpur, Malaysia

Kuala Lumpur, Malaysia