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Therapeutic Optometrist / Ophthalmic Medicine Prescriber /

Contact Lens, Orthokeratology, Myopia Control & Behavioural Optometry Consultant


Dr Yuet Man (Leon) CHENG (Optometry) is an experienced eye care and dispensing optometrist with over 30 years of professional expertise in multifocal lenses, specialised contact lenses, orthokeratology, behavioral optometry and myopia control. His special interest is in solving unusual vision and eye care problems. He is therapeutically endorsed, meaning he can prescribe medications to treat eye diseases, such as infection, inflammation, dry eyes, allergies and glaucoma.  He grew up in Hong Kong and has practiced in Hong Kong and Singapore before settling in Australia. He speaks English, Cantonese, and Mandarin.  He obtained his Bachelor of Optometry (Honours) and Graduate Certificate in Ocular Therapeutics from University of New South Wales, Professional Diploma in Optometry from Hong Kong Polytechnic.  He is also certified to prescribe orthokeratology lenses with renowned leading equipment and has a very high successful rate.  He has been practising optometry since 1988 and has gained a wide variety of experience from working in many different practices including Tan Tock Seng Hospital Ophthalmology Clinic, contact lens specialist practices and behavioural optometry practice in Hong Kong, Singapore and Australia. His professional interests include multifocal glasses and contact lenses, complex and advanced contact lenses, orthokeratology, therapeutic optometry, eye and visual pathway diseases (e.g. dry eyes, keratoconus, glaucomas, macular diseases), headaches, children's vision and behavioural optometry.

He is always passionate about specialty contact lenses and orthokeratology and he has gained a lot of experience during his career. In late 1980s, he worked for the biggest and leading contact lens clinic in Hong Kong and he could see about hundred contact lens cases per day and many cases were hard and gas permeable contact lenses. He fitted a pair of rigid gas permeable lenses successfully for a Hong Kong lady, in her 20's, whose spectacle prescription was about -30.00DS both eyes. In mid 1990s, he worked for Tan Tock Seng Ophthalmology Clinic where he saw many complex cases, including fitting paediatric contact lenses for a 12 month old baby after congenital cataracts removal. The fitting was done in an operation theatre while he was under general anesthesia. Other cases included fitting special corneas such as keratoconus. He also worked for a company which mainly served Japanese and most of them used rigid gas permeable contact lenses. Another Japanese male patient, whose spectacle prescription nearly -30.00DS, was fitted successfully with rigid gas permeable lenses. In early 2010s, he worked for the biggest contact lens clinic in Western Australia where he started to practice orthokeratology. He has prescribed and fitted orthokeratology successfully for high short-sightedness (myopia) nearly -10.00DS, long-sightedness (hyperopia), astigmatism and age-related near blur (presbyopia) with multi-focal. He also refitted cases successfully who were not satisfied from other optometrists.


He is dedicated to provide the best and effective professional services for the best outcome to his patients. He has invested in the gold standard equipment and best education, such as attending every orthokeratology conferences in Australia and obtained the latest information.

  • Optometry Australia (since 2002)

  • Orthokeratology Society of Oceania (since 2011) (Attended every bi-yearly conference in Australia since 2011)

  • Australasian College of Behavioural Optometrists (2012 to 2014)


Orthokeratology for Myopia Control

  • Certified Refractive Therapist from Paragon Vision Science (2013)

  • Certified Prescriber of EyeSpace Forge from Bausch & Lomb (2021)

  • Completed accreditation course of OrthoTool (2021)

Spectacle Lenses for Myopia Control

  • Certified Prescriber of MIYOSMART from Hoya Lens Australia and Myopia Profile (2021)

Contact Lenses for Myopia Control

  • Accredited Prescriber of MiSight 1 Day from CooperVision and Myopia Profile (2023)

Myopia Management

  • Completed the entire BHVI's world leading Myopia Education Program: Courses 1-3 (including Complex Cases) (2021)

Qualified Optical Dispenser / Eyewear Consultant


Irene Wong is a qualified optical dispenser to assist you with selecting frames & lenses to suit your needs and budget. She speaks English, Cantonese and Mandarin.

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