Glaucoma is the most common cause of irreversible blindness. For many years, early diagnosis and detection of disease development and progression has been challenging even for glaucoma specialists. Recently, the advent of optical coherence tomography, a non-contact digital imaging technology, has revolutionized glaucoma diagnostics. The technology of OCT has advanced rapidly over the years and the latest generations of OCT are able to scan the retina and the optic nerve at a speed of 200 kHz (200,000 Hz) with a resolution of <2 micron, enabling wide-field imaging of the retina. The Department of Ophthalmology at HKU has been collaborating with a number of multi-national OCT developers and manufacturers to devise and pioneer innovative diagnostic technologies in the OCT systems to improve the diagnostic performance for detection of glaucoma. The University of Hong Kong is one of the five Advanced Nerve Glaucoma Imaging Network (ANGI Network) SteerCo member institutions, connecting Stanford University (USA), New York University (USA), University College London (UK), and Asan Medical Center (South Korea) to advance OCT diagnostics in glaucoma care on a global scale. 青光眼是導致永久性失明的最常見原因。多年 來,即使對青光眼專家來說,青光眼早期診斷和 進展速度的檢測也具有一定挑戰性。最近,光學 相干斷層掃描(OCT)(一種非接觸式成像技術)的 出現徹底改變了青光眼診斷。在過去幾年,OCT 技術發展迅速,最新一代的OCT能夠以200 kHz (200,000 Hz)的速度掃描視網膜和視神經,分 辨率少於2微米,可觀察視網膜的廣域成像。香 港大學眼科學系一直與多家跨國OCT開發商和 製造商合作,開拓和創新OCT系統設計和診斷技 術,以提高我們對青光眼的診斷能力及揭示青光 眼的發病機制。香港大學是五個高級神經青光 眼成像網絡(ANGI Network)SteerCo成員機構 之一,連繫史丹福大學(美國)、紐約大學(美 國)、倫敦大學學院(英國)和首爾峨山病院(南 韓),在全球推動以OCT技術診斷青光眼。 23 HKU Eye Center Inaugural Report The University of Hong Kong