Keck School Faculty

Benjamin Yixing Xu
Benjamin Yixing Xu
Assistant Professor Of Clinical Ophthalmology
Ophthalmology
HC4 5705 1450 San Pablo Street Health Sciences Campus Los Angeles
Dr. Xu attended Yale University where he graduated cum laude with a bachelor of science in biomedical engineering. He received his MD and PhD degrees from Columbia University where he was part of the NIH-sponsored Medical Scientist Training Program. He completed a well-received thesis studying how the brain uses eye position signals to coordinate accurate eye movements. Dr. Xu completed his residency in ophthalmology at the LAC+USC Medical Center and USC Roski Eye Institute, where he served as Chief Resident and was recognized for his academic and teaching achievements. He completed his glaucoma fellowship with Dr. Robert Weinreb at the UCSD Shiley Eye Institute and Hamilton Glaucoma Center.

Dr. Xu’s primary research interest is preventing vision loss and blindness in patients at risk for angle closure glaucoma (ACG), a common type of glaucoma. His research focuses on studying the pathophysiology of ACG and improving the care of angle closure patients. Dr. Xu collaborates with Dr. Rohit Varma on his population-based eye studies such as the Chinese American Eye Study to identify risk factors for ACG and other ocular diseases. Dr. Xu also uses advanced anterior segment imaging modalities including anterior segment optical coherence tomography (AS-OCT) and ultrasound biomicroscopy (UBM) to study the physiological and biomechanical properties of intraocular structures and aqueous outflow pathways. Finally, Dr. Xu works on designing biomedical devices to assess the function of anterior segment structures, such as the iris and trabecular meshwork.

University of Southern California: Resident Teaching Award, 2016

: Medical Knowledge Award, 2015

: Dr. Alfred P. Steiner Dean's Day Research Award, 2011

: MD/PhD Student Research Symposium Award, 2009

: Columbia University Vision Sciences NEI Training Grant, 2008-2009

: MD/PhD Student Research Symposium Award, 2008

: NIH Medical Scientist Training Program Training Grant, 2004-2008

Surgical Management of Primary Angle-Closure Disease-Why Less Is More JAMA Ophthalmol. 2019 Jul 11. . View in PubMed

Systemic Determinants of Peripapillary Vessel Density in Healthy African Americans: the African American Eye Disease Study Am J Ophthalmol. 2019 Jun 20. . View in PubMed

Effect of Scan Size on Glaucoma Diagnostic Performance Using OCT Angiography En Face Images of the Radial Peripapillary Capillaries J Glaucoma. 2019 May; 28(5):465-472. . View in PubMed

Anterior Segment Optical Coherence Tomography: Applications for Clinical Care and Scientific Research Asia Pac J Ophthalmol (Phila). 2019 Apr 25. . View in PubMed

Differences in Anterior Chamber Angle Assessments Between Gonioscopy, EyeCam, and Anterior Segment OCT: The Chinese American Eye Study Transl Vis Sci Technol. 2019 Mar; 8(2):5. . View in PubMed

Effect of Scan Size on Glaucoma Diagnostic Performance using OCT Angiography En Face Images of the Radial Peripapillary Capillaries J Glaucoma. 2019 Feb 15. . View in PubMed

Quantitative Evaluation of Gonioscopic and EyeCam Assessments of Angle Dimensions Using Anterior Segment Optical Coherence Tomography Transl Vis Sci Technol. 2018 Nov; 7(6):33. . View in PubMed

Correlation between Intraocular Pressure and Angle Configuration Measured by OCT: The Chinese American Eye Study Ophthalmol Glaucoma. 2018 Nov-Dec; 1(3):158-166. . View in PubMed

Diurnal Variation of Optical Coherence Tomography Measurements of Static and Dynamic Anterior Segment Parameters J Glaucoma. 2018 Jan; 27(1):16-21. . View in PubMed

Reproducibility and Agreement of Anterior Segment Parameter Measurements Obtained Using the CASIA2 and Spectralis OCT2 Optical Coherence Tomography Devices J Glaucoma. 2017 Nov; 26(11):974-979. . View in PubMed

Aqueous Angiography: Aqueous Humor Outflow Imaging in Live Human Subjects Ophthalmology. 2017 08; 124(8):1249-1251. . View in PubMed

Benefit of Measuring Anterior Segment Structures Using an Increased Number of Optical Coherence Tomography Images: The Chinese American Eye Study Invest Ophthalmol Vis Sci. 2016 11 01; 57(14):6313-6319. . View in PubMed

The postsaccadic unreliability of gain fields renders it unlikely that the motor system can use them to calculate target position in space Neuron. 2012 Dec 20; 76(6):1201-9. . View in PubMed

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