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About us > Our People > Academic Staff > Dr Henry CHAN
Dr Henry CHAN
Dr Henry CHAN
PhD PDipOptom FAAO
Associate Professor
➲ ORCiD 0000-0002-8516-4711
➲ Author ID (Scopus) 24774420300
Biographical Sketch
Dr Henry Chan obtained the Professional Diploma in Optometry from the Hong Kong Polytechnic and his PhD degree from The Hong Kong Polytechnic University. He joined as teaching staff in 1997.
Dr Chan is currently Associate Professor and Chief of Optometry Clinic in the School. He has managed the Visual Electrophysiology service of The Optometry Clinic since 1998.
Dr Chan is an Honorary Associate Professor of the Eye Institute and Department of Anatomy of The University of Hong Kong. Dr. Chan is a Fellow of the American Academy of Optometry. He was Vice-President of the Hong Kong Society of Professional Optometrists during 2003 - 2004.
Dr Chan is widely recognized for his academic and research achievements. He is the principal investigator of numerous researches on visual electrophysiology. His studies on new visual electrophysiology, the multifocal electroretinogram, were published in leading journals including the British Journal of Ophthalmology, Investigative Ophthalmology and Visual Science and Vision Research.
Selected Publications
Selected Grants
Research Insight
In 2006, a new paradigm – slow double-stimulation multifocal electroretinogram (mfERG) – was developed for clinical use, which could bypass the detrimental effect of unclear ocular media (e.g. cataract) to benefit clinicians examining retinal health. Based on this design, I further developed another paradigm for early glaucoma diagnosis. This new method has over 90% both sensitivity and specificity for differentiating eyes with glaucoma from normal eyes. In 2012, this special measurement was first used and has been proven to detect glaucomatous changes at least 4 years before it being detected by the current clinical tests.
Over the same period, I also used mfERG to investigate the myopic eye. The central inner retinal activities recorded using a specific multifocal ERG measurement were significantly correlated with later myopia progression in children. It is, therefore, a potential reference technique to follow the development of juvenile myopia. I believe that this technique can be applied clinically to estimate the refractive errors progression for an individual child.
My research also focuses on the treatment of eye diseases using Lycium Barbarum (LB) which is a commonly used Traditional Chinese Medicine (TCM). One study showed that a 12-month LB treatment was able to preserve vision and retinal structure in Retinitis Pigmentosa (RP) patients. This was the first study to use a pharmacological approach to RP by applying TCM to delay the progression of heredity retinal degeneration.
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