• Fellow of the Royal College of Ophthalmologists (UK)
• Elected Council member - UK and Ireland Society of Cataract and Refractive Surgery (UKISCRS)
• Elected Council member – The North of England Ophthalmological Society
• Elected Council member - Medical contact lens and ocular surface association
• Ophthalmic representative for the Royal College of Ophthalmologists at British Standard Institute
• Member of Surgical Skills Faculty - the Royal College of Ophthalmologists (UK)
• Member of the European Society of Cataract and Refractive Surgeons (ESCRS)
• Member of International Society of Refractive Surgery (ISRS)
• Member of the Royal College of Surgeons (Edinburgh)
• Member of American Academy of Ophthalmology (AAO)
• General Medical Council associates
• Committee member of the UK branch of European Registry of quality outcomes for cataract and refractive surgery

Mr Chung graduated from the Medical School in the University of Leeds in 1996. He has undertaken both the basic and advanced surgical training in ophthalmology in the Yorkshire region. He further developed his sub-speciality interests in Cornea and Oculoplastic (Eyelid) surgery by undertaking a super specialised fellowship programme at the Manchester Royal Eye Hospital & Leeds General Infirmary.

He is particularly well qualified, having performed in excess of 3000 ophthalmic operations (including over 1500 small-incision sutureless cataract/lens surgery and 1000 eyelid surgery). While he has been trained to manage all general eye conditions, he specialises in a range of surgery:

• Sutureless Cataract surgery (including advanced multi-focal and accommodative intra-ocular lens implantation)
• Refractive lens surgery for those with short-sightedness, long-sightedness and astigmatism, and unsuitable for laser surgery
• Corneal grafting (both full thickness and more advanced partial thickness lamellar grafting)
• Eyelid surgery - for droopy or sagging eyelid, in-turning/out-turning eyelids and tumour removal
• Dry eyes
• Lacrimal (tear duct) surgery for watering eyes

He has presented in excess of 25 paper in national and international academic meetings (including USA, Australia and Europe). Some of these have been published in prestigious peer-reviewed journals (including Ophthalmology, Eye and Archives of Ophthalmology). 

He was the winner of the Best Academic Paper Presentation Prize at the North of England Ophthalmological Society Annual Meeting and the Yorkshire Regional Brian Harcourt Best Poster Presentation Prize in 2006 respectively.