Publications

Walid Abdallah, Wen Li, James Weiland, Mark Humayun, Hossein Ameri: Implantation of multiple suprachoroidal electrode arrays in rabbits Journal of Current Ophthalmology 1: 1-6, 12/2017.

Yao-Chuan Chang, Steven T Walston, Robert H Chow, James D Weiland: GCaMP expression in retinal ganglion cells characterized using a low-cost fundus imaging system Journal of Neural Engineering 14(5): 056018, 09/2017.

ST Walston, YC Chang, JD Weiland, RH Chow: Method to remove photoreceptors from whole mount retina in vitro Journal of Neurophysiology 118(5): 2763-2769, 08/2017.

James D Weiland, Steven T Walston, Mark S Humayun: Electrical Stimulation of the Retina to Produce Artificial Vision Annual Review of Vision Science 2: 273-294, 08/2017.

A Gonzalez-Calle, JD Weiland: Testing stimulus protocols in retinal-prosthesis patients Engineering in Medicine and Biology Society (EMBC), 2017 39th Annual International Conference of the IEEE 1: 1170- 1173, 07/2017.

James D Weiland, Yi Zhang, Juan Carlos Martinez, Bruce Ash, Katie Markley, Helmut Eckhardt, Mark S Humayun: Evaluation of Implantation Feasibility of a Flexible, Tack-Free, Epiretinal Prosthesis in Yucatan Minipig Investigative Ophthalmology & Visual Science 58(8): 4186-4186, 06/2017.

Jeiran Choupan, Vivek Patel, Chris Purington, Noelle R Stiles, Nihong Chen, Jessica Ijams Wolfing Morgan, Andrew S Bock, Kimberly Kinga Gokoffski, Junyan Wang, Meng Law, Amir H Kashani, Geoffrey K Aguirre, James D Weiland, Yonggang Shi, Bosco S Tjan: Retinotopic Imaging of Retinal and Cortical Structure and Function: A New Paradigm for Assessing the Visual Connectome in Health and Disease Investigative Ophthalmology & Visual Science 58(8): 3108-3108, 06/2017.

Kiran Nimmagadda, James D Weiland: Retinotopy within rat primary visual cortex in response to electrical stimulation of the retina Neural Engineering (NER), 2017 8th International IEEE/EMBS Conference on 1: 444-447, 05/2017.

Yao-Chuan Chang, James D Weiland: Stimulation strategies for selective activation of retinal ganglion cells Neural Engineering (NER), 2017 8th International IEEE/EMBS Conference on 1: 345-348, 05/2017.

Hossein Nazari, Paulo Falabella, Lan Yue, James Weiland, Mark S Humayun: Retinal Prostheses: A Clinical Perspective Journal of VitreoRetinal Diseases 1(3): 204-213, 04/2017.

Aminat Adebiyi, Paige Sorrentino, Shadi Bohlool, Carey Zhang, Mort Arditti, Gregory Goodrich, James D Weiland: Assessment of feedback modalities for wearable visual aids in blind mobility PloS one 12(2): e0170531, 02/2017.

Andrew C Weitz, Devyani Nanduri, Robert Jay Greenberg, Mark S Humayun, Robert H Chow, James D Weiland: Focal electrical stimulation of the retina Investigative Ophthalmology & Visual Science 57(12): 3714-3714, 09/2016.

Alejandra Gonzalez Calle, James D Weiland: Evaluation of electrical stimulation of the retina with optical coherence tomography Investigative Ophthalmology & Visual Science 57(12): 3713-3713, 09/2016.

L Yue, JD Dorn, U Patel, HA Aziz, LC Olmos, JD Weiland, MS Humayun: Visual function restored by Argus I and Argus II in the same subject Investigative Ophthalmology & Visual Science 57(12): 1, 09/2016.

Navya S Davuluri, Kiran Nimmagadda, Artin Petrossians, Mark S Humayun, James D Weiland: Strategies to improve stimulation efficiency for retinal prostheses Engineering in Medicine and Biology Society (EMBC), 2016 IEEE 38th Annual International Conference of the 3: 3133-3138, 08/2016.

Artin Petrossians, John J Whalen, James D Weiland: Improved electrode material for deep brain stimulation Engineering in Medicine and Biology Society (EMBC), 2016 IEEE 38th Annual International Conference of the 1: 1798-1801, 08/2016.

Yao-Chuan Chang, Steven T Walston, Robert H Chow, James D Weiland: In vivo characterization of genetic expression of virus-transduced calcium indicators in retinal ganglion cells using a low-cost funduscope Engineering in Medicine and Biology Society (EMBC), 2016 IEEE 38th Annual International Conference of the 1: 1316-1319, 08/2016.

Alejandra Gonzalez-Calle, James D Weiland: Evaluation of effects of electrical stimulation in the retina with optical coherence tomography Engineering in Medicine and Biology Society (EMBC), 2016 IEEE 38th Annual International Conference of the 6: 6182-6185, 08/2016.

Lan Yue, James D Weiland, Botond Roska, Mark S Humayun: Retinal stimulation strategies to restore vision: Fundamentals and systems Progress in retinal and eye research 53: 21-47, 07/2016.

Devon H Ghodasra, Adrienne Chen, J Fernando Arevalo, David G Birch, Kari Branham, Brian Coley, Gislin Dagnelie, Eugene de Juan, Robert G Devenyi, Jessy D Dorn, Andy Fisher, Duane R Geruschat, Ninel Z Gregori, Robert J Greenberg, Paul Hahn, Allen C Ho, Ashley Howson, Suber S Huang, Raymond Iezzi, Naheed Khan, Byron L Lam, Jennifer I Lim, Kirsten G Locke, Michelle Markowitz, Anne-Marie Ripley, Mark Rankin, Hannah Schimitzek, Fay Tripp, James D Weiland, Jiong Yan, David N Zacks, K Thiran Jayasundera: Worldwide Argus II implantation: recommendations to optimize patient outcomes BMC ophthalmology 16(1): 52, 05/2016.

Kiran Nimmagadda, Navya Davuluri, James D Weiland: Relative power consumption at the electrode retina interface during retinal stimulation with voltage versus current controlled stimulus pulses Investigative Ophthalmology and Visual Science 57(12): Art-No, 05/2016.

James D Weiland: Bioelectronic retinal prosthesis SPIE Defense+ Security 1: 98360T-98360T-8, 05/2016.

Alice Cho, Charles Ratliff, Alapakkam Sampath, James Weiland: Changes in ganglion cell physiology during retinal degeneration influence excitability by prosthetic electrodes Journal of Neural Engineering 13 (2): 025001, 02/2016.

Cho AC, Ratliff CD, Sampath AP, Weiland JD: Changes in ganglion cell physiology during retinal degeneration influence excitability by prosthetic electrodes Journal of Neural Engineering 13(2): 025001, 02/2016.

Lan Yue, Paulo Falabella, Punita Christopher, Varalakshmi Wuyyuru, Jessy Dorn, Paulo Schor, Robert J Greenberg, James D Weiland, Mark S Humayun: Ten-year follow-up of a blind patient chronically implanted with epiretinal prosthesis Argus I Ophthalmology 122(12): 2545-2552. e1, 12/2015.

Wang B, Weiland JD: Analysis of the Peak Resistance Frequency Method IEEE Trans Biomed Eng 63 (10): 2086-2094, 12/2015.

Andrew C Weitz, Devyani Nanduri, Matthew R Behrend, Alejandra Gonzalez-Calle, Robert J Greenberg, Mark S Humayun, Robert H Chow, James D Weiland: Improving the spatial resolution of epiretinal implants by increasing stimulus pulse duration Science Translational Medicine 7(318): 318ra203- 318ra203, 12/2015.

Weitz AC, Nanduri D, Behrend MR, Gonzalez-Calle A, Greenberg RJ, Humayun MS, Chow RH, Weiland JD: Improving the spatial resolution of epiretinal implants by increasing stimulus pulse duration Science Translational Medicine 7(318): 318ra203, 12/2015.

Cunningham SI, Shi Y, Weiland JD, Falabella P, Olmos de Koo LC, Zacks DN, Tjan: Feasibility of Structural and Functional MRI Acquisition in Argus® II Retinal Prosthesis Patients: A Case Study with Unpowered Implants Translational Vision Science and Technology 4(6): 6, 12/2015.

Yue L, Falabella P, Christopher P, Wuyyuru V, Dorn J, Schor P, Greenberg RJ, Weiland JD, Humayun MS: Ten-year follow-up of a blind patient chronically implanted with epiretinal prosthesis Argus I Ophthalmology 122(12): 2545-2552, 12/2015.

Kiran Nimmagadda, James Weiland: Electrical stimulation of rat retina elicits retinotopic cortical electrophysiology activity with a dose response characteristic Investigative Ophthalmology and Visual Science 56(7): 774, 11/2015.

Samantha I Cunningham, Yonggang Shi, James D Weiland, Paulo Falabella, Lisa C Olmos de Koo, David N Zacks, Bosco S Tjan: Feasibility of structural and functional MRI acquisition with unpowered implants in Argus II retinal prosthesis patients: a case study Translational Vision Science & Technology 4 (6): 6, 11/2015.

S Cunningham, B Tjan, P Bao, P Falabella, J Weiland: Tactile-Evoked V1 responses in Argus II Retinal Prosthesis Patients assessed with fMRI: A Case Study. Journal of Vision 15(12): 359-359, 10/2015.

Furkan E Sahin, Ben P McIntosh, Patrick J Nasiatka, James D Weiland, Mark S Humayun, Armand R Tanguay: Eye-Tracked Extraocular Camera for Retinal Prostheses Frontiers in Optics 1: FTu2C. 3, 10 /2015.

Boshuo Wang, James D Weiland: Resistivity profiles of wild-type, rd1, and rd10 mouse retina Engineering in Medicine and Biology Society (EMBC), 2015 37th Annual International Conference of the IEEE 1: 1650- 1653, 08/2015.

Steven T Walston, Robert H Chow, James D Weiland: Patch clamp recordings of retinal bipolar cells in response to extracellular electrical stimulation in whole mount mouse retina Engineering in Medicine and Biology Society (EMBC), 2015 37th Annual International Conference of the IEEE 3: 3363-3366, 08/2015.

Samantha I Cunningham, James D Weiland, Pinglei Bao, Gilberto Raul Lopez-Jaime, Bosco S Tjan: Correlation of vision loss with tactile-evoked V1 responses in retinitis pigmentosa Vision Research 111: 197-207, 06/2015.

Boshuo Wang, James D Weiland: Electrical Impedance of wild-type and rd1 Mouse Retina Investigative Ophthalmology & Visual Science 56(7): 770-770, 06/2015.

Nii Tete Mante, Gerard Medioni, Armand Tanguay, James D Weiland: A Vibrotactile Sensory Substitution Guided Feedback System For Object Localization Investigative Ophthalmology & Visual Science 56(7): 4781-4781, 06/2015.

Cunningham SI, Weiland JD, Bao P, Lopez-Jaime GR, Tjan BS: Correlation of vision loss with tactileevoked V1 responses in retinitis pigmentosa Vision research 111: 197-207, 06/2015.

Lizhi Xu, Sarah R Gutbrod, Yinji Ma, Artin Petrossians, Yuhao Liu, R Chad Webb, Jonathan A Fan, Zijian Yang, Renxiao Xu, John J Whalen, James D Weiland, Yonggang Huang, Igor R Efimov, John A Rogers: Materials and fractal designs for 3D multifunctional integumentary membranes with capabilities in cardiac electrotherapy Advanced Materials 27(10): 1731-1737, 03/2015.

Lizhi Xu, Sarah R Gutbrod, Yinji Ma, Artin Petrossians, Yuhao Liu, R Chad Webb, Jonathan A Fan, Zijian Yang, Renxiao Xu, John J Whalen, James D Weiland, Yonggang Huang, Igor R Efimov, John A Rogers: Membranes: Materials and Fractal Designs for 3D Multifunctional Integumentary Membranes with Capabilities in Cardiac Electrotherapy Advanced Materials 27(10): 1730-1730, 03/2015.

Mark Humayun, James Weiland, Steven Walston: Shortcutting the Retina Scientist 28(10): 39-40, 10 /2014.

Furkan E Sahin, Patrick J Nasiatka, James D Weiland, Mark S Humayun, Armand R Tanguay: Optimal Design of Miniature Wide-Angle Computational Cameras for Retinal Prostheses and Wearable Visual Aids Frontiers in Optics 1: FTu5F. 1, 10/2014.

Kaveri A Thakoor, Nii Mante, Carey Zhang, Christian Siagian, James D Weiland, Laurent Itti, Gérard G Medioni: A System for Assisting the Visually Impaired in Localization and Grasp of Desired Objects ECCV Workshops (3) 1: 643-657, 09/2014.

Navya S Davuluri, James D Weiland: Time-varying pulse trains limit retinal desensitization caused by continuous electrical stimulation Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE 1: 414-417, 08/2014.

Weiland JD, Humayun MS: Retinal Prosthesis IEEE Trans. on Biomed. Eng. 61(5): 1412-1424, 05/2014.

Chen K, Weiland JD: Discovery of Retinal Elastin and Its Possible Role in Age-Related Macular Degeneration Annals of biomedical engineering 42(3): 678-684, 03/2014.

Weitz AC, Behrend MR, Ahuja AK, Christopher P, Wei J, Wuyyuru V, Patel U, Greenberg RJ, Humayun MS, Chow R, Weiland JD: Interphase gap as a means to reduce electrical stimulation thresholds for epiretinal prostheses Journal of Neural Engineering 11(1): 016007, 02/2014.

Wang B, Petrossians A, Weiland JD: Reduction of Edge Effect on Disk Electrodes by Optimized Current Waveform Biomedical Engineering, IEEE Transactions 61(8): 2254-2263, 01/2014.

M. Monge, M. Raj, M. Honorvar-Nazari, H.C. Chang, Y. Zhao, J. Weiland, M. Humayun, Y.C. Tai, A. Emami: A Fully Intraocular High-Density Self-Calibrating Epiretinal Prosthesis IEEE Transactions on Biomedical Circuits and Systems 7(6): 747-760, 12/2013.

James D Weiland, Fred M Kimock, Joseph E Yehoda, Emma Gill, Ben P Mclntosh, Patrick J Nasiatka, Armand R Tanguay: Chip-scale packaging for bioelectronic implants Proceedings of the IEEE Neural Engineering Conference, San Diego, CA 1: 931-936, 11/2013.

Chen K, Rowley AP, Weiland JD, Humayun MS: Elastic properties of human posterior eye Journal of Biomedical Materials Research Part A 102(6): 2011-2007, 08/2013.

Aminat Adebiyi, Nii Mante, Carey Zhang, Furkan E Sahin, Gerard G Medioni, Armand R Tanguay, James D Weiland: Evaluation of feedback mechanisms for wearable visual aids Proceedings of the MAP4VIP Workshop, San Jose, CA 1: 1-6, 07/2013.

Kaveri A Thakoor, Sophie Marat, Patrick J Nasiatka, Ben P McIntosh, Furkan E Sahin, Armand R Tanguay, James D Weiland, Laurent Itti: Attention biased speeded up robust features (ab-surf): A neurally-inspired object recognition algorithm for a wearable aid for the visually-impaired Proceedings of the MAP4VIP Workshop, San Jose, CA 1: 1-6, 07/2013.

Yi Zhang, Stacey L Rauen, Michael Koss, Alejandra Calle, Rodrigo Brant, Stephen Swenson, Frank S Markland, Stefan Ufer, Helmut Eckhardt, Mark S Humayun, James D Weiland: Wide-Field Retinal Prosthesis with Three-Dimensionally Contoured Hybrid Silicone/Polyimide Substrates IEEE Neural Engineering Conference, San Diego, CA 1572: mrss13-1572-ss05-08, 06/2013.

Chen K, Lo Y, Yang Z, Weiland J, Humayun M, Liu W: A System Verification Platform for High-Density Epiretinal Prostheses Biomedical Circuits and Systems, IEEE Transactions 7(3): 326,337, 06/2013.

Chen K, Weiland JD: Relationship between vitreous temperature and posterior vitreous detachment J Mech Behav Biomed Mater 26: 54-58, 05/2013.

Francis BA, Weiland JD, Sachs NA, Chang EL: Benzalkonium Chloride–Induced Denervation of Orbicularis Oculi Muscle in Rabbits Invest. Ophthalmol. Vis. Sci. 54(3): 1868-1872, 03/2013.

Parikh N, Itti L, Humayun MS and Weiland JD: Performance of visually guided tasks using simulated prosthetic vision and saliency-based cues J. Neural Eng 10(2): 026017, 02/2013.

Manuel Monge, Mayank Raj, Meisam Honarvar-Nazari, Han-Chieh Chang, Yu Zhao, James Weiland, Mark Humayun, Yu-Chong Tai, Azita Emami-Neyestanak: A fully intraocular 0.0169 mm 2/pixel 512- channel self-calibrating epiretinal prosthesis in 65nm CMOS IEEE International Solid-State Circuits Conference (ISSCC) 1: 296-297, 02/2013.

Emma C Gill, John Antalek, Fred M Kimock, Patrick J Nasiatka, Ben P McIntosh, Armand R Tanguay, James D Weiland: High-Density feedthrough technology for hermetic biomedical micropackaging MRS Proceedings 1572: mrss13-1572, 01/2013.

Weitz AC, Behrend MR, Lee NS, Klein RL, Chiodo VA, Hauswirth WW, Humayun MS, Weiland JD, Chow RH: Imaging the response of the retina to electrical stimulation with genetically encoded calcium indicators Journal of Neurophysiology 109(7): 1979-1988, 01/2013.

Nayar VT, Weiland JD, Hodge AM: Macrocompression and Nanoindentation of Soft Viscoelastic Biological Materials Tissue Eng Part Methods 18(12): 968-975, 12/2012.

Boshuo Wang, James D Weiland: Reduction of current density at disk electrode periphery by shaping current pulse edges International IEEE Engineering in Medicine and Biology (EMBS) Conference 2012 5: 5138-5141, 08/2012.

Alice K Cho, Alapakkam P Sampath, James D Weiland: Physiological response of normal and RD mouse retinal ganglion cells to electrical stimulation International IEEE Engineering in Medicine and Biology (EMBS) Conference 2012 2: 2985-2988, 08/2012.

Artin Petrossians, John J Whalen, James D Weiland, Florian Mansfeld: Electrodeposition of platinum iridium alloy nanowires for hermetic packaging of microelectronics Microelectronics. International IEEE Engineering in Medicine and Biology (EMBS) Conference 2012 7: 727-730, 08/2012.

James D Weiland, Neha Parikh, Vivek Pradeep, Gerard Medioni: Smart image processing system for retinal prosthesis International IEEE Engineering in Medicine and Biology (EMBS) Conference 2012 3: 300-303, 08/2012.

Xie J, Wang GJ, Yow L, Humayun MS, Weiland JD, Cela CJ, Jadvar H, Lazzi G, Dhrami-Gavazi E, Tsang SH: Preservation of retinotopic map in retinal degeneration Exp Eye Res 98: 88-96, 05/2012.

Weiland JD, Faraji B, Greenberg RJ, Humayun MS, Shellock F: Assessment of MRI issues for the Argus II retinal prosthesis Magn Reson Imaging 30(3): 382-9, 01/2012.

Nanduri D, Horasager A, Boynton G, Humayun MS, Greenberg RJ, Weiland JD: Frequency and Amplitude Modulation Have Different Effects on the Percepts Elicited by Retinal Stimulation Invest. Ophthalmol. Vis. Sci. 53(1): 205-214, 01/2012.

Ray A, Chan LL, Gonzalez A, Humayun MS and Weiland JD: Impedance as a Method to Sense Proximity at the Electrode-Retina Interface IEEE Trans. on Neural System and Rehab. Eng. 19(6): 696-699, 10 /2011.

AC Weitz, MR Behrend, MS Humayun, RH Chow, JD Weiland: Interphase gap decreases electrical stimulation threshold of retinal ganglion cells International IEEE Engineering in Medicine and Biology (EMBS) Conference 2011 6: 6725-6728, 08/2011.

Artin Petrossians, John J Whalen, James D Weiland, Florian Mansfeld: Surface modification of neural stimulating/recording electrodes with high surface area platinum-iridium alloy coatings International IEEE Engineering in Medicine and Biology (EMBS) Conference 2011 3: 3001-3004, 08/2011.

Samantha I Cunningham, James D Weiland, Pinglei Bao, Bosco S Tjan: Visual cortex activation induced by tactile stimulation in late-blind individuals with retinitis pigmentosa International IEEE Engineering in Medicine and Biology (EMBS) Conference 2011 2: 2841-2844, 08/2011.

Alice K Cho, Alapakkam P Sampath, James D Weiland: Physiological response of mouse retinal ganglion cells to electrical stimulation: effect of soma size International IEEE Engineering in Medicine and Biology (EMBS) Conference 2011 1: 1081-1084, 08/2011.

Ray A, Lee EJ, Humayun MS, Weiland JD: Continuous electrical stimulation decreases retinal excitability but does not alter retinal morphology Journal of Neural Engineering 8(4): 045003, 07/2011.

Chen K, Weiland JD: Mechanical properties of orbital fat and its encapsulating connective tissue J Biomech Eng 133(6): 064505, 07/2011.

Chan L, Lee EJ, Humayun MS, Weiland JD: Both Electrical Stimulation Thresholds and SMI-32 Immunoreactive Retinal Ganglion Cell Density Correlate with age in S334ter line 3 Rat Retina Journal of Neurophysiology AJP – JN Physiol 105(6): 2687-2697, 06/2011.

Venky Sundaram, Vijay Sukumaran, Michael E Cato, Fuhan Liu, Rao Tummala, James D Weiland, Patrick J Nasiatka, Armand R Tanguay: High density electrical interconnections in liquid crystal polymer (LCP) substrates for retinal and neural prosthesis applications 2011 IEEE 61st Electronic Components and Technology Conference 1: 1308-1313, 05/2011.

Nayar VT, Weiland JD, Nelson CS, Hodge AM: Elastic and Viscoelastic Characterization of Agar Journal of the Mechanical Behavior of Biomedical Materials 7: 60-68, 05/2011.

Nayar VT, Weiland JD, Hodge: Characterization of Porcine Sclera using instrumented Nanoindentation Materials Science and Engineering: C 31(4): 796, 05/2011.

Behrend MR, Ahuja A, Humayun MS, Chow R, Weiland JD: Resolution of the Epiretinal Prosthesis is not Limited by Electrode Size IEEE Trans Neural Syst Rehabil Eng 19(4): 436-42, 04/2011.

Petrossians A, Whalen III JJ, Weiland JD, Mansfeld F: Electrodeposition and Characterization of ThinFilm Platinum-Iridium Alloys for Biological Interfaces Journal of the Electrochemical Society 158(6): S15- S15, 03/2011.

Eng JG, Agrawal RN, Tozer KR, Ross-Cisneros FN, Dagnelie G, Greenberg RJ, Chader GJ, Weiland JD, Rao NA, Sadun AA, Humayun MS: Morphometric analysis of optic nerves and retina from an end-stage retinitis pigmentosa patient implanted with an active epiretinal array Invest Ophthalmol Vis Sci 52: 4610- 4616, 02/2011.

Wen L, Rodger DC, Pinto A, Meng E, Weiland JD, Humayun MS, Tai YC: Parylene-based integrated wireless single-channel neurostimulator Sensors and Actuators Physical 166(2): 193-200, 01/2011.

Xie J, Wang GJ, Yow L, Cela C, Humayun MS, Weiland JD, Lazzi G, Jadvar H: Modeling and Percept of Transcorneal Electrical Stimulation in Humans IEEE Transactions on Biomedical Engineering 58(7): 1932- 1939, 01/2011.

Pradeep V, Medioni G, Weiland JD: A wearable system for the visually impaired International IEEE Engineering in Medicine and Biology (EMBS) Conference 2010 6: 6233-6236, 08/2010.

Vivek Pradeep, Gerard Medioni, James Weiland: Robot vision for the visually impaired 2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops 1: 15-22, 06 /2010.

Chen K, Yang Z, Hoang L, Weiland JD, Humayun, MS, Liu W.: An Integrated 256-Channel Epiretinal Prosthesis IEEE Journal of Solid-State Circuits 45(9): 1946-1956, 01/2010.

Wen L, Rodger DC, Meng, E, Weiland JD, Humayun MS, Tai: Wafer-Level Parylene Packaging With Integrated RF Electronics for Wireless Retinal Prostheses Journal of Microelectromechanical Systems 19 (4): 735-742, 01/2010.

Parikh N, Itti L, Weiland JD: Saliency-based image processing for retinal prostheses J Neural Eng 7(1): 16006, 01/2010.

Chen K, Weiland JD: Anisotropic and inhomogeneous mechanical characteristics of the retina J Biomech 43(7): 1417-21, 01/2010.

Ray A, Sun GJ, Chan L, Grzywacz NM, Weiland JD, Lee EJ: Morphological alterations in retinal neurons in the S334ter-line3 transgenic rat Cell Tissue Res 339(3): 481-91, 01/2010.

Chen K, Rowley AP, Weiland JD: Elastic properties of porcine ocular posterior soft tissues Journal of Biomedical Materials Research 93A(2): 634-645, 01/2010.

Chader GJ, Weiland JD, Humayun MS: Artificial vision: needs, functioning, and testing of a retinal electronic prosthesis Prog Brain Res 175: 317-32, 12/2009.

James D Weiland, Mark S Humayun, Helmut Eckhardt, Stefan Ufer, Lucien Laude, Brooke Basinger, YuChong Tai: A comparison of retinal prosthesis electrode array substrate materials Engineering in Medicine and Biology Society, 2009. EMBC 2009 4: 4140-4143, 09/2009.

Neha J Parikh, Benjamin P McIntosh, Armand R Tanguay, Mark S Humayun, James D Weiland: Biomimetic image processing for retinal prostheses: peripheral saliency cues Engineering in Medicine and Biology Society, 2009. EMBC 2009 4: 4569-4572, 09/2009.

Vivek Pradeep, Gerard Medioni, James Weiland: Visual loop closing using multi-resolution sift grids in metric-topological slam IEEE Conference Computer Vision and Pattern Recognition 1: 1438-1445, 06 /2009.

Ameri H, Ratanapakorn T, Ufer S, Eckhardt H, Humayun MS, Weiland JD: Toward a wide-field retinal prosthesis J Neural Eng 6(3): 035002, 01/2009.

Basinger BC, Rowley AP, Chen K, Humayun MS, Weiland JD: Finite element modeling of retinal prosthesis mechanics Journal of Neural Engineering 6(5): 55006, 01/2009.

Behrend MR, Ahuja AK, Humayun MS, Weiland JD, Chow R: Selective labeling of retinal ganglion cells with calcium indicators by retrograde loading in vitro Journal of Neuroscience Methods 179(2): 166-72, 01 /2009.

D Nanduri, MS Humayun, RJ Greenberg, MJ McMahon, JD Weiland: Retinal prosthesis phosphene shape analysis Engineering in Medicine and Biology Society, 2008. EMBS 2008 1: 1785-1788, 08/2008

LH Chan, A Ray, BB Thomas, MS Humayun, JD Weiland: In vivo study of response threshold in retinal degenerate model at different degenerate stages Engineering in Medicine and Biology Society, 2008. EMBS 2008 1: 1781-1784, 08/2008.

Horsager A, Greenwald SH, Weiland JD, Humayun MS, Greenberg RJ, McMahon MJ, Boynton GM, Fine I: Predicting visual sensitivity in retinal prosthesis patients Invest Ophthalmol Vis Sci 50(4): 1483-91, 01 /2008.

Ray A, Colodetti L, Weiland JD, Hinton DR, Humayun MS, Lee EJ: Immunocytochemical analysis of retinal neurons under electrical stimulation Brain Research 1255: 89-97, 01/2008.

Weiland JD, Humayun MS: Visual Prosthesis Proceedings of the IEEE 96(7): 1076-1084, 01/2008.

Ahuja AK, Behrend MR, Kuroda M, Humayun MS, Weiland JD: An In Vitro Model of a Retinal Prosthesis IEEE Trans Biomed Eng 55(6): 1744-53, 01/2008.

de Balthasar C, Patel S, Roy A, Freda R, Greenwald S, Horsager A, Mahadevappa M, Yanai D, Mcmahon MJ, Humayun MS, Greenberg RJ, Weiland JD, Fine I: Factors affecting perceptual thresholds in epiretinal prostheses Invest Ophthalmol Vis Sci 49(6): 2303-14, 01/2008.

Ahuja AK, Behrend MR, Whalen III JJ, Humayun MS, Weiland JD: The dependence of spectral impedance on disc microelectrode radius IEEE Trans Biomed Eng 55(4): 1457-60, 01/2008.

Behrend MR, Ahuja AK, Weiland JD: Dynamic current density of the disk electrode double-layer IEEE Trans Biomed Eng 55(3): 1056-62, 01/2008.

V Singh, A Roy, R Castro, K McClure, R Greenberg, J Weiland, M Humayun, G Lazzi: SAR in the human body by a wireless telemetry system for a retinal prosthesis Antennas and Propagation Society International Symposium, 2007 IEEE 3: 3205-3208, 06/2007.

Rodger DC, Fong AJ, Li W, Ameri H, Ahuja AK, Gutierrez C, Lavrov I, Zhong H, Menon PR, Meng E, Burdick JW, Roy RR, Edgerton VR, Weiland JD, Humayun MS, Tai YC: Flexible Parylene-Based Multielectrode Array Technology for High-Density Neural Stimulation and Recording Sensors & Actuators: B. Chemical 132(2): 449-460, 01/2007.

Colodetti L, Weiland JD, Colodetti S, Ray A, Seiler MJ, Hinton DR, Humayun MS: Pathology of damaging electrical stimulation in the retina Exp Eye Res 85(1): 23-33, 01/2007.

Yanai DY, Weiland JD, Mahadevappa M, Greenberg RJ, Fine I, Fujii GY, Humayun MS: Visual performance using a retinal prosthesis in three subjects with retinitis pigmentosa Am J Ophthalmol 143 (5): 820-827, 01/2007.

Shah S, Hines A, Zhou D, Greenberg RJ, Humayun MS, Weiland JD: Electrical properties of retinal electrode interface Electrical properties of retinal-electrode interface 4(1): S24-9, 01/2007.

Sachs NA, Chang EL, Vyas N, Sorensen BN, Weiland JD: Electrical stimulation of the paralyzed orbicularis oculi in rabbit IEEE Trans Neural Syst Rehabil Eng 15(1): 67-75, 01/2007.

Dagnelie G, Keane P, Narla V, Liancheng Y, Weiland JD, Humayun MS: Real and virtual mobility performance in simulated prosthetic vision J. Neural Eng 4(1): S92-101, 01/2007.

Sachs NA, Chang EL, Weiland JD: Contralateral EMG-triggered electrical stimulation of the eyelid 11th Annual Conference of the International Functional Electrical Stimulation Society, Zao, Japan 1: 286-288, 09/2006.

W Li, DC Rodger, JD Weiland, MS Humayun, YC Tai: Integrated flexible ocular coil for power and data transfer in retinal prostheses Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005 1: 1028-1031, 01/2006.

Weiland JD, Fink W, Humayun MS, Liu W, Rodger DC, Tai YC, Tarbell M: Progress towards a high resolution retinal prosthesis Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005 7: 7373-7375, 01/2006.

Guoxing Wang, Wentai Liu, Mohanasankar Sivaprakasam, Mingcui Zhou, James D Weiland, Mark S Humayun: A wireless phase shift keying transmitter with Q-independent phase transition time Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005 5: 5238-5241, 01/2006.

Mohanasankar Sivaprakasam, Wentai Liu, Guoxing Wang, James D Weiland, Mark S Humayun: A programmable discharge circuitry with current limiting capability for a retinal prosthesis Proceedings of the IEEE Eng Med Biol Soc. 2005 5: 5243-7, 01/2006.

Chen SJ, Mahadevappa M, Roizenblatt R, Weiland JD, Humayun MS: Neural responses elicited by electrical stimulation of the retina Trans Am Ophthalmol Soc 104: 252-259, 01/2006.

Whalen III JJ, Young J, Weiland JD, Searson PC: Electrochemical characterization of charge injection at electrodeposited platinum electrodes in phosphate buffered saline J Electrochem Soc 153(12): C834- C839, 01/2006.

O’Hearn T, Sadda SR, Weiland JD, Maia M, Margalit E, Humayun MS: Electrical stimulation in normal and retinal degeneration (rd1) isolated mouse retina Vision Res 46(19): 3198-204, 01/2006.

Rodger DC, Weiland JD, Humayun MS, Tai YC: Scalable High Lead-Count Parylene Package for Retinal Prostheses Sensors & Actuators: B. Chemical 117(1): 107-114, 01/2006.

Shyu JS, Maia M, Weiland JD, O’Hearn T, Chen SJ, Margalit E, Suzuki S, Humayun MS: Electrical stimulation in isolated rabbit retina IEEE Trans Neural Syst Rehabil Eng 14(3): 290-8, 01/2006.

Ratanapakorn T, Ameri H, Humayun MS, Weiland JD: Enucleated eye model for intraocular retinal prosthesis implantation Ophthalmic Surg Lasers Imaging 37(4): 341-3, 01/2006.

Javahari M, Hahn DS, Lakhanpal RR, Weiland JD, Humayun MS: Retinal prostheses for the blind Ann Acad Med Singapore 35(3): 127-44, 01/2006.

Güven D, Weiland JD, Maghribi M, Davidson C, Mahadevappa M, Roisenblatt R, Qiu G, Krulevitz P, LaBree L, Humayun MS: Implantation of an inactive epiretinal poly (dimethyl siloxane) electrode in dogs Exp Eye Res 82(1): 81-90, 01/2006.

Roizenblatt R, Weiland JD, Carcieri S, Qiu G, Behrend MR, Humayun MS, Chow R: Nanobiolistic delivery of functional indicators to the living mouse retina J Neurosci Methods 153(1): 154-61, 01/2006.

Xiao X, Wang J, Carlisle J, Auciello O, Weiland JD, Humayun MS, Mech BV, Greenberg RJ: In Vitro and In Vivo Evaluation of Ultrananocrystalline Diamond for Coating of Implantable Retinal Microchips J Biomed Mater Res B Appl Biomater 77(2): 273-81, 01/2006.

Whalen III JJ, Weiland JD, Searson PC: Electrochemical Deposition of Platinum from Aqueous Ammonium Hexachloroplatinate Solution J Electrochem Soc 152(11): C738-C743, 01/2005.

Weiland JD, Humayun MS: A biomimetic retinal stimulating array IEEE Eng in Med Biol Mag 24(5): 14-21, 01/2005.

Weiland JD, Liu W, Humayun MS: Retinal Prosthesis Annu Rev Biomed Eng 7: 361-401, 01/2005.

Mahadevappa M, Weiland JD, Yanai D, Fine I, Greenberg RJ, Humayun MS: Perceptual thresholds and electrode impedance in three retinal prosthesis subjects IEEE Trans Neural Syst Rehabil Eng 13(2): 201- 6, 01/2005.

Kendir GA, Liu W, Wang G, Sivaprakasam M, Bashirullah R, Humayun MS, Weiland JD: An Optimal Design Methodology for Inductive Power Link With Class-E Amplifier IEEE Trans. on Circuits and SysteMS 52(5): 857-866, 01/2005.

Güven D, Weiland JD, Fujii G, Mech BV, Mahadevappa M, Greenberg RJ, Roizenblatt R, Qiu G, LaBree L, Wang X, Hinton DR, Humayun MS: Long-term stimulation by active epiretinal implants in normal and RCD1 dogs J. Neural Eng 2(1): S65-73, 01/2005.

Samip Shah, Amy Chu, David Zhou, Robert Greenberg, Dilek Guven, Mark S Humayun, James D Weiland: Intraocular impedance as a function of the position in the eye, electrode material and electrode size Engineering in Medicine and Biology Society, 2004. IEMBS’04. 26th Annual International Conference of the IEEE 2: 4169-4171, 09/2004.

Mohammad Kazemi, Eric Basham, Mohanasankar Sivaprakasam, Guoxing Wang, Damien Rodger, James Weiland, YC Tai, Wentai Liu, Mark Humayun: A test microchip for evaluation of hermetic packaging technology for biomedical prosthetic implants Engineering in Medicine and Biology Society, 2004. IEMBS’04. 26th Annual International Conference of the IEEE 2: 4093-4095, 09/2004.

JD Weiland, D Yanai, M Mahadevappa, R Williamson, BV Mech, GY Fujii, J Little, RJ Greenberg, E Jr de Juan, MS Humayun: Visual task performance in blind humans with retinal prosthetic implants Engineering in Medicine and Biology Society, 2004. IEMBS’04. 26th Annual International Conference of the IEEE 2: 4172-4173, 09/2004.

Neha J Parikh, James D Weiland, Mark S Humayun, Saloni S Shah, Gaurav S Mohile: DSP Based Image Processing for Retinal Prosthesis Engineering in Medicine and Biology Society, 2004. IEMBS’04. 26th Annual International Conference of the IEEE 1: 1475-1478, 09/2004.

Panzan CQ, Guven D, Weiland JD, Lakhanpal RR, Javaheri M, de Juan Jr E, Humayun: Retinal Thickness in Normal and RCD1 Dogs Using Optical Coherence Tomography Ophthalmic Surg Lasers Imaging 35(6): 485-93, 01/2004.

Gosalia K, Weiland JD, Humayun MS, Lazzi G: Thermal elevation in the human eye and head due to the operation of a retinal prosthesis IEEE Trans Biomed Eng 51(8): 1469-77, 01/2004.

Suzuki S, Humayun MS, Weiland JD, Chen SJ, Margalit E, Piyathaisere DV, de Juan Jr E: Comparison of electrical stimulation thresholds in normal and retinal degenerated mouse retina Jpn J Ophthalmol 48(4): 345-349, 01/2004.

Maia M, Margalit E, Lakhanpal R, Tso MO, Grebe R, Torres G, Eong KG, Farah ME, Fujii GY, Weiland JD, de Juan Jr E, D’Anna SA, Humayun MS: Effects of Intravitrea Indocyanine Green Injection in Rabbits Retina 24(1): 69-79, 01/2004.

JD Weiland, D Yanai, M Mahadevappa, R Williamson, BV Mech, GY Fujii, J Little, RJ Greenberg, E de Juan, MS Humayun: Electrical stimulation of retina in blind humans Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE 3: 2021-2022, 09 /2003.

M Mahadevappa, JD Weiland, D Guven, GY Fujii, BV Mech, RJ Greenberg, E de Juan, MS Humayun: Cortical response after chronic electrical stimulation of canine retina Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE 2: 1573-1574, 09 /2003.

Hayes JS, Yin VT, Piyathaisere D, Weiland JD, Humayun MS, Dagnelie G: Visually guided performance of simple tasks using simulated prosthetic vision Artif Organs 27(11): 1016-28, 01/2003.

DeMarco SC, Liu W, Singh PR, Lazzi G, Humayun MS, Weiland JD: An Arbitrary Waveform Stimulus Circuit for Visual Prostheses Using a Low-Area Multibias DAC IEEE Journal of SSC 38(10): 2286-2295, 01/2003.

Humayun MS, Weiland JD, Fujii GY, Greenberg RJ, Williamson R, Little J, Mech BV, Cimmarusti V, van Boemel G, Dagnelie G, de Juan Jr E: Visual perception in a blind subject with a chronic microelectronic retinal prosthesis Vision Res 43(24): 2573-81, 01/2003.

Lazzi G, DeMarco SC, Liu W, Weiland JD, Humayun MS: Computed SAR and Thermal Elevation in a 0.25-mm 2-D Model of the Human Eye and Head in Response to an Implanted Retinal Stimulator – Part II: Results IEEE Trans. on Antennas and Propagation 51(9): 2286-2295, 01/2003.

DeMarco SC, Lazzi G, Liu W, Weiland JD, Humayun MS: Computed SAR and Thermal Elevation in a 0.25-mm 2-D Model of the Human Eye and Head in Response to an Implanted Retinal Stimulator – Part I: Models and Methods IEEE Trans. on Antennas and Propogation 51(9): 2274-2285, 01/2003.

Yanai DM, Lakhanpal RR, Weiland JD, Mahadevappa M, van Boemel G, Fujii GY, Greenberg RJ, Caffey S, de Juan Jr E, Humayun MS: The value of preoperative tests in the selection of blind patients for a permanent microelectronic implant Trans Am Ophthalmol Soc 101: 223-8, 228-30, 01/2003.

Lakhanpal RR, Yanai D, Weiland JD, Fujii GY, Caffey S, Greenberg RJ, de Juan Jr E, Humayun MS: Advances in the development of visual prostheses Curr Opin Ophthalmol 14(3): 122-7, 01/2003.

Piyathaisere DV, Margalit E, Chen SJ, Shyu JS, D’Anna SA, Weiland JD, Grebe RR, Grebe L, Fujii G, Kim SY, Greenberg RJ, de Juan Jr E, Humayun MS: Heat effect on the retina Ophthalmic Surg Lasers Imaging 34(2): 114-20, 01/2003.

Margalit E, Weiland JD, Clatterbuck RE, Fujii GY, Maia M, Tameesh M, Torres G, D’Anna SA, Desai S, Piyathaisere DV, Olivi A, de Juan Jr E, Humayun MS: Visual and electrical evoked response recorded from subdural electrodes implanted above the visual cortex in normal dogs under two methods of anesthesia J Neurosci Methods 123(2): 129-37, 01/2003.

JD Weiland, GY Fujii, M Mahadevappa, RJ Greenberg, M Tameesh, D Guven, E de Juan, MS Humayun: Chronic electrical stimulation of the canine retina Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint 3: 2051-2052, 10/2002.

Weiland JD, Anderson DJ, Humayun MS: In Vitro Electrical Properties for Iridium Oxide vs. Titanium Nitride Stimulating Electrodes IEEE Trans Biomed Eng 49(12 Pt 2): 1574-9, 01/2002.

An G, Asayama N, Humayun MS, Weiland JD, Cao J, Kim S, Grebe RR, de Juan Jr E, Sadda SR: Ganglion cell responses to retinal light stimulation in the absence of photoreceptor outer segments from retinal degenerate rodents Curr Eye Res 24(1): 26-32, 01/2002.

Margalit E, Maia M, Weiland JD, Greenberg RJ, Fujii GY, Torres G, Piyathaisere DV, O’Hearn T, Liu W, Lazzi G, Dagnelie G, Scribner DA, de Juan Jr E, Humayun MS: Retinal Prosthesis for the Blind Surv Ophthalmol 47(4): 335-356, 01/2002.

MS Humayun, JD Weiland, B Justus, C Merrit, J Whalen, D Piyathaisere, SJ Chen, E Margalit, G Fujii, RJ Greenberg, E Jr de Juan, D Scribner, W Liu: Towards a completely implantable, light-sensitive intraocular retinal prosthesis Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE 4: 3422-3425, 10/2001.

Radner W, Sadda SR, Humayun MS, Suzuki S, Melia M, Weiland JD, de Juan Jr E: Light-Driven Retinal Ganglion Cell Responses in Blind rd Mice after Neural Retinal Transplantation Invest Ophthalmol Vis Sci 41: 1057-65, 01/2001.

DeMarco S, Clements M, Liu W, Humayun MS, Weiland JD: An Extraocular Stimulation System for Use in a Retinal Prosthesis Proceedings of the 22nd conference of the IEEE Engineering in Medicine and Biology Society 22: 1, 07/2000.

Weiland JD, Cogan S, Humayun MS: Micro-machined, polyimide stimulating electrodes with electroplated iridium Proceedings of the 21st Conference of the IEEE Engineering in Medicine and Biology Society 21: 278, 01/2000.

Liu W, Vichienchom K, Clements M, DeMarco SC, Hughes C, McGucken E, Humayun MS, de Juan Jr E, Weiland JD, Greenberg RJ: A Neuro Stimulus Chip with Telemetry Unit for Retinal Prosthetic Device IEEE Journal of Solid-State Circuits (Red Journal) 35(10): 1487-1497, 01/2000.

Margalit E, Fujii GY, Lai JC, Gupta P, Chen SJ, Shyu JS, Piyathaisere DV, Weiland JD, de Juan Jr E, Humayun MS: Bioadhesives for Intraocular Use Retina 20(5): 469-77, 01/2000.

Weiland JD, Anderson DJ: Chronic neural stimulation with Thin-Film, Iridium Oxide Electrodes IEEE Trans Biomed Eng 47(7): 911-18, 01/2000.

Majji AB, Humayun MS, Weiland JD, Suzuki S, D’Anna SA, de Juan, Jr E: Long term results of epiretinal electrode array implantation in dogs Invest Ophthal Vis Sci 40(9): 2073-81, 01/1999.

Humayun MS, de Juan, Jr E, Weiland JD, Dagnelie G, Katona S, Greenberg RJ, Suzuki S: Pattern Electrical Stimulation of the Human Retina Vision Res 39(15): 2569-76, 01/1999.

Weiland JD, Humayun MS, Dagnelie G, de Juan, Jr E: Understanding the Origin of Visual Percepts Elicited by Electrical Stimulation of the Human Retina Graefes Arch Clin Exp Ophthalmology 237(12): 1007-13, 01/1999.

Weiland JD, Anderson DJ, Pogatchnik CP, Boorgard J: Recessed Electrodes formed by Laser Ablation of Parylene Coated, Micromachined Silicon Probes Proceedings of the 19th Conference of the IEEE Engineering in Medicine and Biology Society 19: 2273-2276, 10/1997.