1. Sun Yat-Sen University

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    1. Mentioned In 105 Articles

    2. Macular and Retinal Nerve Fiber Layer Thickness Measurements in Normal Eyes With the Stratus OCT, the Cirrus HD-OCT, and the Topcon 3D OCT-1000

      Macular and Retinal Nerve Fiber Layer Thickness Measurements in Normal Eyes With the Stratus OCT, the Cirrus HD-OCT, and the Topcon 3D OCT-1000
      Purpose: To compare retinal nerve fiber layer (RNFL) and macular thickness measurements using time-domain optical coherence tomography (TD OCT) and 2 Fourier-domain OCTs (FD OCT). Methods: Sixty eyes of 60 normal participants underwent eye examination followed by OCT evaluation with the time-domain Stratus OCT (Carl Zeiss Meditec, Inc. Dublin, CA) and 2 FD OCTs-the Cirrus HD-OCT (Carl Zeiss Meditec, Inc. Dublin, CA) and the 3D OCT-1000 (Topcon Corporation, Tokyo, Japan ...
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    3. Comparison of full-thickness traumatic macular holes and idiopathic macular holes by optical coherence tomography

      Comparison of full-thickness traumatic macular holes and idiopathic macular holes by optical coherence tomography
      ... , Ziqiang Wu^2 and Srinivas Sadda^3 (1) State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 Xianlienan Road, Guangzhou, 510060, People’s Republic of China (2) Center for Adva...
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    4. Biometry of the Cornea and Anterior Chamber in Chinese Eyes: an Anterior Segment Optical Coherence Tomography Study

      Purpose: To investigate the normative data of corneal and anterior segment biometric parameters in Chinese adults and their associations for use in preoperative assessment for corneal and anterior segment surgery. Methods: This cross-sectional, population based study included 750 subjects aged 50 years. The subjects underwent an ophthalmic examination including imaging using anterior segment optical coherence tomography (AS-OCT). Dimensions were subsequently measured with the Zhongshan Assessment Program (ZAP). We also include ...
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    5. Macular Thickness Measurements in Normal Eyes With Time-Domain and Fourier-Domain Optical Coherence Tomography

      Purpose: To compare macular thickness measurements using time-domain optical coherence tomography (OCT) and Fourier-domain OCT. Methods: Thirty-two eyes from 32 normal patients underwent complete ophthalmic evaluation. Macular scanning using the StratusOCT and the RTVue-100 OCT were performed for a total of three times each on the same visit. The average retinal thicknesses of the nine macular sectors as defined by the Early Treatment Diabetic Retinopathy Study, along with the foveal ...
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    6. Early changes in clear cornea incision after phacoemulsification: an anterior segment optical coherence tomography study

      Purpose: We aimed to investigate the ultrastructures of clear corneal incisions 24 hours after phacoemulsification using anterior segment optical coherence tomography (AS-OCT).Methods: Sixty eyes of 60 patients scheduled for cataract surgery were randomly selected. All eyes underwent the same phacoemulsification procedure carried out by one experienced surgeon. Two-plane temporal clear corneal tunnel incisions were performed. The same types of intraocular lens and implant system were used in all patients ...
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    7. Cr-doped materials as potential broadband and tunable sources

      Various oxidation states and location sites of chromium (Cr) in doped crystal have been known. Since the high sensitivity of ligand field on chromium ions, these are attributable to a broadband emission. The wide broadband emission can potentially be exploited in many ways. For instance, a Cr-doped ... [Proc. SPIE 7339, 73390R (2009)] published Tue Apr 28, 2009.
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    8. Signal Strength is an Important Determinant of Accuracy of Nerve Fiber Layer Thickness Measurement by Optical Coherence Tomography.

      Purpose: To investigate the effect of signal strength on the measurement of the retinal nerve fiber layer (RNFL) using optical coherence tomography (OCT). Methods: Eyes with known or suspected glaucoma or nonglaucomatous optic atrophy were scanned twice within the same visit using Stratus OCT's Fast Nerve Fiber Layer Thickness protocol. Only those eyes with 2 high-quality scans (signal strengths of at least 5 and different from each other, no ...
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    9. Variation of Angle Parameters in Asians: An Anterior Segment Optical Coherence Tomography Study in a Population of Singapore Malays

      Objective: To assess variations in angle parameters using anterior segment optical coherence tomography (AS-OCT) and to investigate demographic, ocular and systemic associations of angle width. Methods: This was a sub-study of a population based, cross-sectional survey of 3,280 (78.7% response rate) Malay people aged 40-80 years in Singapore. All participants underwent a standardized interview and ocular and systemic examination. AS-OCT was performed on 291 consecutive patients under standardized ...
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    10. Comparison of lens thickness measurements using the Anterior Segment Optical Coherence Tomography and A-scan ultrasonography

      Purpose: To assess lens thickness (LT) measurements with anterior segment optical coherence tomography (AS-OCT) in comparison with A-scan ultrasonography (A-scan US). Methods: 66 eyes of 48 phakic elderly volunteers aged 50+ years and 56 eyes of 56 young participants aged 18-40 years were enrolled in the study. LT was measured using the internal manual caliper tools in AS-OCT. The A-scan US measurements were based on the average of 10 consecutive ...
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    11. Low-loss propagation in Cr^4+:YAG double-clad crystal fiber fabricated by sapphire tube assisted Cdlhpg technique

      K. Y. Huang, K. Y. Hsu, D. Y. Jheng, W. J. Zhuo, P. Y. Chen, P. S. Yeh, S. L. Huang. Cr^4+:YAG double-clad crystal fiber with an uniform 10-μm core was fabricated by using a sapphire tube as a heat capacitor to stabilize the power fluctuation of the CO_2 laser in the co-drawing laser-heated pedestal growth system. The uniformity of the fiber core showed a factor of 3 ...
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    12. 91-105 of 105 « 1 2 3 4 5 6 7
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  2. About Sun Yat-Sen University

    Sun Yat-Sen University

    Sun Yat-Sen University is located in Guangdong Province, the frontal of reform and opening. At present the University has 4 campuses with a total area of 6.17 square kilometers sitting respectively on both sides of the Pearl River or facing the South China Sea.  Zhongshan Ophthalmic Center is at the Sun Yat-Sen University of Medical Sciences, Guangzhou, China