Author: Sam Yuen

CUHK Study First Proves Low-Concentration Atropine Eye Drops Reduce Myopia Progression in Children with Minimal…
Myopia, or shortsightedness, is the most common ocular disorder worldwide. Several international studies suggested atropine eye drops could slow down myopic progression in children, and thus lowering the risk of [...]
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Dr. Danny Ng received the Gold Medal Award in the Leadership Development Program of APVRS
We are much delighted to share that our faculty member Dr. Danny Ng received the Gold Medal Award for his outstanding participation in the Leadership Development Program (LDP) of Asia-Pacific [...]
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The CUHK Eye Centre Christmas And New Year Party 2018
The Department held its annual Christmas and New Year Party on 11th December, we are truly honoured to have our distinguished guests coming to the party and making it a [...]
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Visit from Dr Lily Peng, Google AI Healthcare Team
We are very much honoured to invite Dr Lily Peng, MD, PhD, the product manager of Google AI Healthcare Team, to visit our department and delivered a lecture titled “Deep [...]
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Visit from Dr Hilal Saima, Erasmus University Medical Center, Rotterdam
Dr Hilal Saima is currently a post-doctoral scientific researcher in Erasmus University Medical Center, Rotterdam, the Netherlands and a visiting research fellow at Memory Aging and Cognition Center, NUHS. She [...]
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Visit from Prof Christopher Chen Li-Hsian, National University of Singapore
We are very much honoured to have Professor Christopher Chen Li-Hsian, a Senior Clinician-Scientist, Associate Professor at the Departments of Pharmacology and Psychological Medicine, Yong Loo Lin School of Medicine, [...]
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信報:飛蚊 + 閃光 視網膜SOS訊號
視網膜脫落是一種常見、嚴重並具致盲性的眼底病,病發時視網膜的感光層 (neurosensory retina) 和色素上皮層 (retinal pigmentepithelium) 脫離,導致視網膜的感光細胞 (photoreceptors) 失去養分而使眼睛喪失視覺功能。此種疾病主要發生於有近視病的人、老年人、無晶狀體或人工晶體人士及眼外傷患者。   深近視人士更要警惕視網膜脫落   由於裂孔性的視網膜脫落有可能在短時間內令患者失明,因此讀者應對此眼疾有更深入的了解。對於本身有深度近視(超過600度)的讀者而言,更要提高警覺。若你們有下文所提及的徵狀,就應及早找眼科醫生作出適當的診斷及治療,免被此疾病奪去寶貴的視力。 有很多人常把眼角膜和視網膜混為一談,其實兩者分屬眼睛不同的部位,各具功能。打個比喻,眼角膜就像相機的鏡頭,本身是透明的,位於眼球前部。如果眼角膜變得混濁,就好比照相機的鏡頭磨損了,會影響到相機影像的質素;嚴重的眼角膜問題可以透過眼角膜手術甚至是眼角膜移植手術來補救。至於視網膜則是眼球壁最裏面的一層薄膜,位於眼球最內部。眼睛的感光系統將光訊號聚集到視網膜上,就像相機把光聚焦到菲林上一樣。與眼角膜不同,視網膜缺損目前是不能以移植手術來進行補救。 視網膜共有十層細胞,其中第一至第九層統稱為視網膜神經上皮層,是眼睛的感光層;在神經上皮層外為視網膜色素上皮層,兩層之間存在潛在的間隙。醫學界發現大部分視網膜脫落是由於視網膜產生裂孔,眼球內的玻璃體  (vitreous humor) 會透過裂孔進入視網膜神經上皮層底下,將第九和第十層分開,從而導致視網膜脫落,就像牆上的汽泡會導致牆紙脫落一樣。視網膜脫落後,上皮層得不到足夠的營養與血液供應,如果不及時作出補救,脫落的視網膜功能將永久喪失。   飛蚊症 = 視網膜脫落?   很多讀者以為出現「飛蚊症」等同視網膜脫落,其實飛蚊症是指患者眼前看到半透明黑色物隨着目光飄來飄去,可以呈點狀、線狀、雲狀或圓圈狀,年長人士及深度近視者容易出現此徵狀,是因為他們的玻璃體從啫喱狀變成液態化,又或者出現渾濁物。但如果飛蚊徵狀突然增加,或合併有閃光(flashes)的出現,就有可能是視網膜裂孔或剝離的先兆。如果讀者發現單眼情況視野中的某一區域變暗變黑,就須要盡快進行詳細的眼底檢查。當視網膜部分脫落時,患者其中一隻眼前會出現固定的陰影;當累及視網上的黃斑區時,該眼睛的中心視力會急劇下降。大部分人在視網膜脫落之前往往出現大量「飛蚊」及「閃光」徵狀,不過如果位於黃斑區的視網膜已經在病發初期脫落,患者就可能未能及時留意到有關的問題。 視網膜脫落多發生於四十至八十歲的組群,多數患者會伴隨有深度近視、視網膜撕裂 (retinal tear) 或變性、糖尿病、後玻璃體脫落 (posterior vitreous [...]
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Exchanging experiences and insights for utilizing virtual reality simulation technology on WOC 2018
During World Ophthalmology Congress 2018 at Barcelona, Spain, Dr. Danny Ng, Vice director of CUHK Jockey Club Ophthalmic Microsurgical Training Programme, exchanged experiences and insights for utilizing virtual reality simulation [...]
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CUHK Receives Nearly HK$78 Million from HKJC to Launch Ophthalmic Programmes for Children’s Eye Care…
The Department of Ophthalmology and Visual Sciences of the Faculty of Medicine at The Chinese University of Hong Kong (CUHK) has received a generous donation of nearly HK$78 million from [...]
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Our medical student received the “Best Scientific Paper Award” from the 33rd Asia-Pacific Academy of…
Victor T.T. CHAN, our year-4 MBChB-GPS student, wins the “Best Scientific Paper Award” at the 33rd Asia-Pacific Academy of Ophthalmology (APAO) Congress for his abstract “Retinal Neuronal Loss in Alzheimer’s [...]
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Congratulations to Prof Calvin C.P. Pang for becoming an ARVO Silver Fellow
Prof Calvin C. P. Pang has become one of the ARVO Silver Fellows in recognition of his accomplishments in research and leadership in ophthalmology and visual sciences, and his contributions [...]
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Dr Li Jia CHEN wins the gold medal for the Best Original Research by Trainees…
Congratulations to Dr Li Jia CHEN, who wins the 2015 gold medal for the Best Original Research by Trainees from the Hong Kong Academy of Medicine with a topic “A [...]
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