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Qiushi Ren
Ph.D., Professor
PKU-COE Endowed Chair Professor
MOE Chang-Jiang Distinguished Professor Chairman,
Department of Biomedical Engineering Peking University
  • Office Add: Beijing 100871 People's Republic of China
  • Office Tel: +86-10-6276-7113
  • Fax: +86-10-6276-7113
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Faculty in the News

COE collaborates with CUDIM in molecular imaging


1984   BA  Optical Engineering, Hua-Zhong University of Science and Technology, Wuhan, China

1987  MS  Electrical Engineering, The Ohio State University, Columbus, Ohio

1990  Ph. D  Electrical Engineering, The Ohio State University, Columbus, Ohio

Research Areas And Interests

1.  Laser medicine and bio-photonics

2.  Neuro-medical engineering

3.  Intelligent medical device and equipment

4.  Micro Electromechanical System for biomedical applications


Dr. Qiushi Ren is currently MOE Chang-Jiang Distinguished Professor, Winner of the National Science Foundation for Distinguished Young Scholars, and Chief Scientist of National Key Basic Research Project "973 Project:Basic Research on the Key Issues of Visual Function Recovery For Blindness". From 1990 to 1994, Dr. Qiushi Ren was an assistant professor of Department of Biomedical Engineering, University Miami. From 1995 to 1998, he was an associate professor of the Department of Ophthalmology, University of California, Irvine.

Dr. Qiushi Ren mainly engaged in the study on basic theory and technical research of laser medicine. Based on the comprehensive and in-depth research on key issues of visual optics and visual function restoration, he put forward a serial of new theories or new methods. Most of them are put into practice or converted to up-to-date medical equipment. Under the conduct of Dr. Qiushi Ren, the research group also uses laser technology as a means of physical regulation to research the mechanism of skin collagen’s restoration and reorganization. According to the analysis of a serial of in-depth research result, some laser therapeutic apparatus with minimally invasive were developed and put into clinical application. Aiming at the early diagnosis of major diseases and minimally invasive surgical application, molecular imaging diagnosis based on optical scanning technology, multi-photon spectral imaging technology, near-infrared Raman spectroscopy had been carried out by Dr. Qiushi Ren. Intelligent Minimally Invasive Surgical system had been applied to cure the pathological tissue. Within the scope of the related research field, Dr. Qiushi Ren had published more than 100 academic papers, made more than 40 academic reports around the world. He initiated and organized more than 10 times of the international conference or symposium. He had got 2 U.S. patents and 6 Chinese patents. He was also the associate deputy editor and editorial board member of many international and domestic magazines, such as "Interdisciplinary Sciences-Computational Life Sciences ", “Chinese Journal of Laser”, “Chinese Journal of Medical Instrumentation”, “ACTA Laser Biology Sinica”, “Journal of Clinical Rehabilitative Tissue Engineering Research” etc.

Currently, Dr. Qiushi Ren is the Chief Scientist of National Key Basic Research Project (973 Project). This project was supported by Ministry of Science and Technology with $4 million for study on basic theory and key scientific issues of visual function restoration. At the same time, he was also supported by 16 national level research project or program, such as National High-tech R&D Program of China(863 project), National Natural Science Foundation of China, MOE innovation project of university (111 project), and the major scientific and technological projects funded by Shanghai Science and Technology Commission.


1.       US Patent No: 5423800: Laser Sclera Buckling for Retinal Detachment Surgery: Method and Device. Issue Date: June 13, 1995.

2.       USPatent No: 5,688,264: Laser treatment for retinal detachment. Issue Date: November 18, 1997

3.       US Patent Pending: Visual Prosthesis (Submitted on Feb. 16, 2006)

4.       US Patent Pending: System for Creating Visual Images (Submitted on Dec. 20, 2006)

Selected Publications

Book Chapters

Qiushi Ren, Xinyu Chai, Kaijie Wu, Chuanqing Zhou and C-Sight Group: Chapter 10. Visual Prosthesis Based on Optic Nerve Stimulation with Penetrating Electrode Array 187- 207. Mark S. Humayun, James D. Weiland, Gerald Chader, Elias Greenbaum (Eds.): Artificial Sight: Basic Research, Biomedical Engineering, and Clinical Advances (ISBN-13: 978-0-387-49329-9 e-ISBN-13 0-387-49331-2). 2007 Springer Science+Business Media, LLC

Journal Publications

1.            Ren, Q.S., Gailitis, R.P., Thompson, K.P., and Lin, J.T.: Ablation of the Cornea and Synthetic Collagen Using a UV (213nm) Solid State Laser.  IEEE J. Quant. Electron. Special Issue on Lasers in Medicine and Biology 26:2284-2288, 1990 (SCI/IF="2.086)" (Cited by 34)

2.            Ren, Q.S. and Birngruber R.: Axicon, A New Beam Delivery System for Biomedical Applications. IEEE J. Quant. Electron. Special Issue on Lasers in Medicine and Surgery 26:2305-2308, 1990 (SCI/IF="2.086)" (Cited by 10)

3.            Ren, Q.S. and Venugopalan, V., Schomaker, K., Deutsch, T.F., Flott, T.J., Puliafito, C.A., and Birngruber, R.: Mid-Infrared Laser Ablation of the Cornea: A Comparative Study. Lasers in Surgery and Medicine 12:274-281, 1992 (SCI/IF="2.347)" (Cited by 48)

4.            Thompson, K.P., Ren, Q.S., Parel, J-M: Therapeutic and Diagnostic Applications of Lasers in Ophthalmology. Proceedings of the IEEE 80:838-860, 1992 (Cited by 10)

5.            Simon, G., Ren QS and Parel, J-M: Optics of Corneal Epithelium. Journal of Refractive Surgery 9:42-50, 1993 (SCI/IF="1.995)" (Cited by 18)

6.            Gailitis RP, Patterson SW, Samuels MA, Hagen K, Ren QS, and Waring, G.O.III: Comparison of Laser Photovaporization Using the Er:YAG and the Er:YSGG Laser.  Arch Ophthalmol 111:697-700, 1993 (SCI/IF="2.424)" (Cited by 33)

7.            Simon, G., Small, R.H., Ren QS, and Parel, J-M: The Effect of Corneal Hydration on Goldmann Applanation Tonometry and Corneal Topography. Journal of Refractive Surgery 9:110-117, 1993  (SCI/IF="1.995)" (Cited by 40)

8.            Ren QS, Simon G, Parel J-M, and Smiddy W: Laser Scleral Buckling For Retinal Reattachment Surgery. Am. J. Ophthalmol 115:758-762, 1993  (SCI/IF="1.828)" (Cited by 7)

9.            Legeais J-M, Ren QS, Simon G. Parel J-M: Computer Assisted Corneal Topography: Accuracy and Reproducibility of the Topographic Modeling System. Journal of Refractive Surgery, 9:347-357, 1993 (SCI/IF="1.995)" (Cited by 30)

10.          Ren QS, Simon G, Parel J-M: UV Solid State Laser (213nm) Photo-Refractive Keratectomy: In Vitro Study. Ophthalmology, 100:1828-1834, 1993 (SCI/IF="3.066)" (cited by 30)

11.          Simon G, Ren QS: Biomechanical Behavior of the cornea and Its Response to Radial Keratotomy (RK). Journal of Refractive Surgery. 10:343-351, 1994 (SCI/IF="1.995)" (Cited by 15)

12.          Ren QS, Simon G, Legeais J-M, Parel J-M, Culbertson W, Shen JH, Takesue Y, Savoldelli M: UV Solid State Laser (213nm) Photo-Refractive Keratectomy: In Vivo Study. Ophthalmology 101:883-889, 1994 (SCI/IF="3.066)" (Cited by 22)

13.          Ren QS, Simon G, Parel JM: Non-Contact Laser Photo-Thermal Keratoplasty (LPTK): III. Histolopathological Study. J. Refract Corneal Surg. 10:529-539, 1994  (SCI/IF="1.995)" (Cited by 12)

14.          Ren QS, Keates RH, Hill A, Berns M: Laser Refractive Surgery: A Review and Current Status. Opt. Eng. 34: 642-660, 1995  (SCI/IF="0.997)" (cited by 32)

15.          Hill RA, Ren Q, Nguyen DC, et al.: Free-electron laser (FEL) ablation of ocular tissues. LASERS IN MEDICAL SCIENCE 13 (3): 219-226 1998  (SCI/IF="0608)" (Cited by 11)

16.          Dang, Yongyan, Ren, Qiushi, Hoecker, Sabine, Liu, Huaxu, Ma, Jingbo & Zhang, Jinsheng:
Biophysical, histological and biochemical changes after non-ablative treatments with the 595 and 1320 nm lasers: a comparative study. Photodermatology, Photoimmunology & Photomedicine 21 (4), 204-209?2005. (Cited by 5)

17.          Dang, Yong-Yan, Ren, Qiu-Shi, Liu, Hua-Xu, Ma, Jing-Bo, Zhang, Jin-Sheng: Comparison of histologic, biochemical, and mechanical properties of murine skin treated with the 1064-nm and 1320-nm Nd:YAG lasers. Experimental Dermatology 2005, 14 (12), 876-882. (Cited by 5)

18.          Dang, Yongyan, Ren, Qiushi, Li, Wanrong, Yang, Qing & Zhang, Jinsheng Comparison of biophysical properties of skin measured by using non-invasive techniques in the KM mice following 595 nm pulsed dye, 1064 nm Q-Switched Nd:YAG and 1320 nm Nd:YAG laser non-ablative rejuvenation.
Skin Research and Technology 2006:12 (2), 119-125. (Cited by 5)

19.          Lin Yang, Ruimin Xing, Qingming Shen, Kai Jiang, Feng Ye, Jinye Wang, and Qiushi Ren*  Fabrication of Protein-Conjugated Silver Sulfide Nanorods in the Bovine Serum Albumin Solution?Journal of Physical Chemistry (B), 110 (21), 10534 -10539, 2006  (SCI/IF="3.379)" (Cited by 8)

20.          Dang, Yongyan; Ren, Qiushi1;Liu, Huaxu; Ma, Jingbo; Zhang, Jinsheng: Effects of the 1,320-nm Nd:YAG laser on transepidermal water loss, histological changes, and collagen remodeling in skin: Lasers in Medical Science. 21 (2006). 147-152(6).

21.          Hong Guo, Nina Korablinova, Qiushi Ren, Josef Bille?Wavefront reconstruction with artificial neural networks. Optics Express, Vol. 14, Issue 14, pp. 6456-6462, 2006.

22.          Xinyu Chai, Wei Yu, Jia Wang, Ying Zhao, Changsi Cai, Qiushi Ren. Recognition of Pixelized Chinese Characters using Simulated Prosthetic Vision. Artificial Organs. 31:3, 175—182, 2007 (SCI="1.946)

23.          Chuanqing Zhou, Xinyu Chai, Li Yuan, Yanling He, Min Jin and Qiushi Ren. Corneal Higher-Order Aberrations After Customized Aspheric Ablation and Conventional Ablation for Myopic Correction. Current Eye Research, 32:431—438, 2007

24.          Huaxu. Liu, Yongyan  Dang, Xinyu Chai, Zhan Wang, Li. Ma, Qiushi Ren: Treatment of port-wine stains with the 595-nm pulsed dye laser: a pilot study in Chinese patients. Clinical and Experimental Dermatology 32 (6), 646—649, 2007

25.          Chuanqing Zhou, MS; Min Jin, MD; Xiaoyuan Wang, MD; Qiushi Ren, PhD: Corneal Wavefront-guided Ablation With the Schwind ESIRIS Laser for Myopia. Journal of Refractive Surgery Vol. 23(6):573-580. 2007 (SCI="1.948)

26.          Cazenave-Loustalet V, Qiao QL, Li LM, Ren QS: Evoked membrane potential change in rat optic nerve fiber: computer simulation. Neurosci Bull. 2007 Nov; 23(6): 348-56

27.          Huaxu Liu, Yongyan Dang, Zhan Wang, Xinyu Chai, PhD, and Qiushi Ren, PhD: Laser Induced Collagen Remodeling: A Comparative Study In Vivo on Mouse Model. Lasers in Surgery and Medicine 40:13-19, 2008.

28.          Chuanqing Zhou, Weichao Wang, Kun Yang, Xinyu Chai, and Qiushi Ren: Measurement and comparison of the optical performance of an ophthalmic lens based on a Hartmann-Shack wavefront sensor in real viewing conditions. Applied Optics, Vol. 47, Issue 34, pp. 6434-6441.

29.          Xinyu Chai, Lei-Lei Zhang, Kun Yang, and Qiushi Ren: Study of tactile perception based on phosphene positioning using simulated prosthetic vision.Artificial Organs 2008 Feb;32(2):110-5 (SCI="1.946)

30.          Chai X, Li L, Wu K, Zhou C, Cao P, Ren Q C-Sight visual prostheses for the blind. IEEE Eng Med Biol Mag. 2008 Sep-Oct; 27(5): 20-8