|Visual Field Expansion Devices|
The prototype robotic obstacle installation being built to test field expansion devices. The top schematics illustrate obstacle movement from a top-down perspective of the ceiling-mounted system (above), and a side view (below). The obstacles can be programmed to act as moving as well as stationary obstacles and to move sideways relative to the path of the subject: (1) side collision, (2) frontal crossing, (3) frontal approach, (4) frontal by-passing, (5) rear by-passing, (6) rear cut-in (object moves from the rear and by passes the subject then cut-in). Bottom photos illustrate prototype obstacle unit launched from the ceiling and performing the frontal by-passing maneuver.
Alex Bowers, Ph.D
Gang Luo, Ph.D
Jae-Hyun Jung, Ph.D.
Kevin Houston, O.D., M.S.
Russell Woods, Ph.D.
Matt Bronstad, Ph.D
Fernando Vargas-Martin, Ph.D.
NIH Grant 5R01EY023385, "Visual Field Expansion Through Innovative Multi-periscopic Prism Design"
NIH Grant 5R01EY023385, "Visual Field Expansion Through Innovative Multiplexing Prism Design"
NIH Grant 1R24EY12890, "Engineering Approaches to Low Vision Rehabilitation"
Dept. of Defense (DoD)/ (DMRDP) DM090420, Contract W81XWH-11-2-0082, Grant 10499150,
"Rehabilitation of Visual and Perceptual Dysfunction after Severe Traumatic Brain Injury", $1,429,567 Total Award (2010-2014)
Luo G, Peli E, and Pundlik S. (2019) Collision Prediction (A continuation of US patent 9,734,586) This patent was licensed to Toramon Co., Ltd. Nan’an District, Chongqing, China for non-ophthalmic applications US Patent 10,402,985 B2 [PDF 2.03 MB]
Peli E. (2018) Vision modification based on a multiplexing prism US Patent #10,031,346 [ PDF 2127 KB]
Peli E. (2008) Peripheral Field Expansion Device. US patent #7,374,284. [PDF 992 KB]
Deng HW, Peli E, Zhao J, Li XJ. (2018) Vision Field Expansion Device Chinese Patent No. ZL2017 2 1593694.X
实用新型专利：视野扩增器专利号 ZL2017 2 1593694.发明人：邓宏伟、以利泽贝利、赵军、李晓洁
Peli E, and Vargas FM. Expansion of field of view. US Patent 11,520,169, Issued: 12/6/2022 [PDF 2.25 MB]
Peli E, Goldstein B, Jung J-H (2023) The Invisibility of Scotomas I: The Carving Hypothesis, Optometry and Vision Science, 100(8):p 515-529. 10.1097/OPX.0000000000002048 [ PDF 19.4MB].
Falahati M, Kurukuti, NM, Vargas-Martin F, Peli E, Jung JH (2023) Oblique multi-periscopic prism for field expansion of homonymous hemianopia. Biomed. Opt. Express. 14(5), 2352-2364. 2023. DOI:10.1364/BOE.485373 [PDF 8.68MB]
Houston KE, Peli E, Luo G, Bowers AR, Woods R. (2022) Effects of Perceptual-Motor Training on Collision Judgments in Prism Expanded Vision. Optometry and Vision Science, 99(12):p 875-884. DOI:10.1097/OPX.0000000000001957
Jung JH, Kurukuti NM, Peli E (2021) Photographic depiction: The perceived scene through spectacles-mounted low vision. Optometry and Vision Science, 2021; 98:1210-1226. DOI: 10.1097/OPX.0000000000001790 [ PDF 3.60MB]
Peli E. (2020) Prentice Award Lecture: Peripheral Prisms for Visual Field Expansion: A Translational Journey, Optometry and Vision Science, 97(10), 833-846. DOI: 10.1097/OPX.0000000000001590 [ PDF 5.16MB]
Peli E, Vargas-Martin F, Kurukuti NM, Jung J-H (2020) Multi-periscopic prism device for field expansion. Biomedical Optics Express, 2020; 11(9): 4872-4889. DOI: 10.1364/BOE.399028 [ PDF 5.16MB]
Choi H-J, Peli E, Park M, Jung J-H. (2020) Design of 45° periscopic visual field expansion device for patients with homonymous hemianopia. Optics Communications, 2020, 454:124364.DOI: 10.1016/j.optcom.2019.124364 [ PDF 2.08MB]
Jung J-H, Castle R, Kurukuti NM, Manda S, Peli E. (2020) Multiplexing Prism Glasses Improve Pedestrian Detection for People with Acquired Monocular Vision, Translational Vision Science & Technology. 9(8), 35-35. [ PDF 3.04MB]
Bronstad PM, Peli E, Liu R, Doherty A, Fulton A. (2018) High Prevalence of Strabismic Visual Field Expansion in Pediatric Homonymous Hemianopia. PLOS ONE, 13(12): e0209213. doi:10.1371/journal.pone.0209213 [PDF 1.52MB]
Houston K, Bowers AR, Peli E, Woods RL. (2018) Peripheral Prisms Improve Obstacle Detection in Left Hemispatial Neglect. Optometry and Vision Science, 2018; 95:795–804. doi:10.1097/OPX.0000000000001280
Jung JH, Peli E. (2018) Field expansion for acquired monocular vision using a multiplexing prism. Optometry and Vision Science, 2018; 95:814–828. doi: 10.1097/OPX.0000000000001277
Jung JH, Peli E. (2018) No useful field expansion with full-field prisms. Optometry and Vision Science, 2018;95:805–813. doi: 10.1097/OPX.0000000000001271
Qiu C, Jung JH, Tuccar-Burak M, Spano L, Goldstein R, Peli E. (2018) Measuring Pedestrian Collision Detection With Peripheral Field Loss and the Impact of Peripheral Prisms. Translational Vision Science & Technology, 2018;7: 1. doi:10.1167/tvst.7.5.1 doi:10.1167/tvst.7.5.1 [ PDF 1.8 MB]
Houston KE, Peli E, Goldstein RB, Bowers AR. (2018) Driving with Hemianopia VI: Peripheral Prisms and Perceptual-Motor Training Improve Blind-side Detection in a Driving Simulator. Translational Vision Science & Technology, 2018; 7(1), Article 5 doi: 10.1167/tvst.7.1.5 [PDF 1.12 MB]
Bowers AR, Dickinson C, Peli E.(2017) Comments about outcome measures for clinical trials of interventions for post-stroke patients with hemianopia.
Acta Neurologica Scandinavica, 2017 Nov; 136(5):548-550. doi: 10.1111/ane.12770.
[PDF 257 KB]
Reply: Rowe et al. (2017) Choice of outcome measures for the VISION pilot trial of interventions for hemianopia. Acta Neurologica Scandinavica, 2017 Nov; 136(5):551-553. doi: 10.1111/ane.12772 [PDF 261 KB]
Peli E, Jung JH. (2017) Multiplexing prisms for field-of-view expansion. Optometry and Vision Science, 2017; 94: 817–829. doi:10.1097/OPX.0000000000001102 [PDF 1.31MB]
Peli E, Apfelbaum H, Berson EL, Goldstein RB. (2016) The risk of pedestrian collisions with peripheral visual field loss. Journal of Vision, 16(15):5, 1–15 doi:10.1167/16.15.5 [PDF 4.63MB]
Houston KE, Bowers AR, Fu X, Liu R, Goldstein RB, Churchill J, Wiegand JP, Soo T, Tang Q, Peli E. (2016) A Pilot Study of Perceptual-Motor Training for Peripheral Prisms. Translational Vision Science & Technology, 2016;5(1):9, doi:10.1167/tvst.5.1.9 [PDF 1.37MB]
Apfelbaum H, Peli E. (2015) Tunnel Vision Prismatic Field Expansion: Challenges and Requirements Translational Vision Science & Technology, 2015;4(6):8, doi:10.1167/tvst.4.6.8 [PDF 1.46MB]
Houston KE, Woods RL, Goldstein RB, Peli E, Luo G, Bowers AR. (2015) Asymmetry in the Collision Judgments of People with Homonymous Field Defects and Left Hemispatial Neglect. Investigative Ophthalmology and Visual Science. 2015;56:4135–4142, doi:10.1167/ iovs.14-15492 [PDF 612KB].
Shen J, Peli E, Bowers AR. (2015) Peripheral prism glasses: Effects of moving and stationary backgrounds on detection. Optometry and Vision Science, 92(4): 412-420
Haun AM, Peli E. (2014) Binocular Rivalry with Peripheral Prisms used for Hemianopia Rehabilitation. Ophthalmic and Physiological Optics, 34: 573–579. doi: 10.1111/opo.12143. [PDF 775KB].
Peli E, Satgunam P. (2014) Bitemporal hemianopia; its unique binocular complexities and a novel remedy. Ophthalmic and Physiological Optics, 34: 233–242. doi: 10.1111/opo.12118.[PDF 3.41MB]
M.A. Garcia Perez, E. Peli (2014) The bisection point across variants of the task. Attention, Perception & Psychophysics, 76:1671–1697. DOI 10.3758/s13414-014-0672-9 DOI [PDF 1.55MB]
Jung JH, Peli E (2014) Impact of high power and angle of incidence on prism corrections for visual field loss. Optical Engineering, 53 (6), 061707, 2014; doi: 10.1117/1.OE.53.6.061707 [8.33MB]
© 2014 SPIE. This paper was published in Optical Engineering as open access.
This paper is accessible via the journal's website here.
Peli, E. (2013) Prism Glasses for Hemianopia in Insight Into Low Vision. Takeshita, B. and Carter, A. (Eds). Council of Citizens with Low Vision International, pp. 58-61. PDF not available yet
Bowers A, Keeney K, Peli E. (2013) Randomized crossover clinical trial of real and sham peripheral prism glasses for hemianopia. JAMA Ophthalmology. doi:10.1001/jamaophthalmol.2013.5636 [Free Online]
|Apfelbaum H, Ross NC, Bowers AR, Peli E. (2013) Considering apical scotomas when prescribing prisms for homonymous hemianopia. Translational Vision Science & Technology, 2013; 2(4):2, http://tvstjournal.org/doi/full/10.1167/tvst.2.4.2. [ PDF 2.9 MB]|
Bowers AR, Tant M, Peli E. (2012) A pilot evaluation of on-road detection performance by drivers with hemianopia using oblique peripheral prisms. Stroke Research and Treatment, 2012 (2012), Article ID 176806. doi:10.1155/2012/176806 [PDF 1.8 MB] [direct link]
Satgunam P, Peli E. (2012) Torsional ARC effectively expands the visual field in hemianopia. Optometry and Vision Science 2012, 89(9), pp E1353-E1363 [PDF 4.8 MB ]
Satgunam P, Apfelbaum H, Peli E. (2012) Volume perimetry: Measurement in depth of visual field loss. Optometry and Vision Science 2012, 89(9), pp E1265-E1275 [PDF 3.7 MB]
Ross NC, Bowers AR, Peli E. (2012) Peripheral prism glasses: Effects of dominance, suppression and background. Optometry and Vision Science 2012, 89(9), pp 1343-1352 [PDF 1.8 MB]
Pundlik S, Peli E, and Luo G. (2011) Time to collision and collision risk estimation from local scale and motion. G. Bebis et al. (Eds.): ISVC 2011, Part I, LNCS 6938, pp. 732-741, 2011, Springer-Verlag, Berlin Heidelberg [PDF 679 KB ]
Peli E. (2010) Prism lenses for patients with hemianopia. Refractive Eyecare 14(9) September 2010 Cover Article with Video [ PDF with embedded Video 471KB]
Woods RL, Giorgi RG, Berson EL, Peli E. (2010) Extended wearing trial of Trifield lens device for "Tunnel Vision". Ophthalmic and Physiological Optics 2010 30: 240-252 [PDF 432 KB]This is an electronic version of an article published in Ophthalmic and Physiological Optics: complete citation information for the final version of the paper, as published in the print edition of Ophthalmic and Physiological Optics, is available on the Blackwell Synergy online delivery service, accessible via the journal's website at http://www.blackwellpublishing.com/OPO or http://www.blackwell-synergy.com.
Apfelbaum HL, Gambacorta C, Woods RL, Peli E (2010) Inattentional blindness with same scene at different scales. Ophthalmic and Physiological Optics 2010 30: 124-131 [PDF 544 KB]This is an electronic version of an article published in Ophthalmic and Physiological Optics: complete citation information for the final version of the paper, as published in the print edition of Ophthalmic and Physiological Optics, is available on the Blackwell Synergy online delivery service, accessible via the journal's website at http://www.blackwellpublishing.com/OPO or http://www.blackwell-synergy.com.
Giorgi RG, Woods RL, Peli E. (2009) Clinical and laboratory evaluation of peripheral prism glasses for hemianopia. Optometry and Vision Science 86(5): 492-502 Note: This version contains supplemental material not included in the OVS May 2009 printed journal.[PDF 5.87 MB]
Peli E. (2008) Vision multiplexing: An optical engineering concept for low-vision aids. SPIE Conference on Current Developments in Lens Design and Optical Engineering VIII. In press [PDF 1.93 MB]
Apfelbaum HL, Apfelbaum DH, Woods RL, Peli E. (2008) Inattentional blindness and augmented-vision displays: Effects of cartoon-like filtering and attended scene. Ophthalmic and Physiological Optics 28(3): 204-217
[PDF 390 KB]
Data from this study is available on our "Data Sharing" page.
This is an electronic version of an article published in Ophthalmic and Physiological Optics: complete citation information for the final version of the paper, as published in the print edition of Ophthalmic and Physiological Optics, is available on the Blackwell Synergy online delivery service, accessible via the journal's website at http://www.blackwellpublishing.com/OPO or http://www.blackwell-synergy.com.
Bowers A, Keeney K, Peli E. (2008) Community-based trial of peripheral prism visual field expansion device for hemianopia. Archives of Ophthalmology 126(5): 657-664 [PDF 239 KB ]
Luo G, Vargas-Martin F, Peli E. (2008) Role of peripheral vision in saccade planning and visual stability: Learning from people with tunnel vision. Journal of Vision 8(14):25, 1-8 [PDF 349 KB]
Peli E, Luo G, Bowers A, Rensing N. (2007) Development and evaluation of vision multiplexing devices. International IEEE-BAIS Symposium on Research on Assistive Technologies (RAT-07) 1: 13-20. [PDF 446 KB]
Peli E, Luo G, Bowers A, Rensing N. (2007) Augmented vision head-mounted systems for vision impairments. The SID Int Symposium, Soc Information Display, Long Beach, CA 2007. SID 07 Digest 1074-1077. [PDF 1.32 MB]
Apfelbaum H, Pelah A, Peli E. (2007) Heading assessment by "tunnel vision" patients and control subjects standing or walking in a virtual reality environment. ACM Transactions on Applied Perception. 4(1): Article 8 [PDF 329 KB]
Luo G, Lichtenstein L, Peli E. (2007) Collision judgement when viewing minified images through a HMD visual field expander. Proceedings of SPIE, Ophthalmic Technologies XVII, vol. 6426, 64261Z, 2007. [PDF 6.4 MB]
Vargas-Martín F, Peli E. (2006) Eye Movements of patients with tunnel vision while walking. Investigative Ophthalmology and Visual Science. 47(12): 5295-5302.[PDF 956 KB]
Luo G, Peli E. (2006) Use of an augmented-vision device for visual search in patients with tunnel vision. Investigative Ophthalmology and Visual Science. 47(9): 4152-4159. [PDF 323 KB]
Peli E, Bowers A, Mandel A, Higgins K, Goldstein RB, Bobrow L. (2005) The design of driving simulator performance evaluations for driving with vision impairments and visual aids. Transportation Research Report: Journal of the Transportation Research Board 1937, 128-135. [PDF 1.7 MB]
Zebehazy K, Zimmerman G, Bowers A, Luo G, Peli E. Establishing Mobility Measures to Assess the Effectiveness of Night Vision Devices: Results of a Pilot Study. Journal of Visual Impairment and Blindness. 99(10) 663-670 [PDF 45 KB]
Barabas J, Woods R, Peli E (2005) Walking Simulator for Evaluation of Ophthalmic Devices. Proc. of SPIE-IS&T Electronic Imaging, SPIE Vol. 5666, Human Vision and Electronic Imaging X, edited by BE Rogowitz, TN Pappas and SJ Daly, 2005, 424-433, SPIE. [PDF 988 KB]
Apfelbaum HL, Apfelbaum DH, Woods RL, Peli E. (2005) The effect of edge filtering on vision multiplexing. SID 05 Digest of Technical Papers, 2005. 1398-1401. [PDF 1.9 MB]
Luo G, Peli E. (2004) Kinematics of visual search by tunnel vision patients with augmented vision see-through HMD. SID 2004, Digest of Technical Papers, Society for Information Display 2004. 1578-1581. [PDF 440 KB]
Barabas J, Goldstein RB, Apfelbaum H, Woods RL, Giorgi RG, Peli E. (2004) Tracking the line of primary gaze in a walking simulator: modeling and calibration. Behavior Research Methods, Instruments, & Computers 2004. 36(4): 757-770 [PDF 786 KB]
Woods RL, Fetchenheuer I, Vargas-Martin F, Peli E. (2003) The impact of non-immersive HMDs on the visual field. J Soc Information Display, 11(1): 191-198. [PDF 1.1 MB]
Li L, Peli E, Warren WH. (2002) Heading perception in patients with advanced retinitus pigmentosa. Optom Vision Sci, 79(9): 581-589. [PDF 1.1 MB]
Peli E. (2002) Treating with spectacle lenses: a novel idea!? 2001 Glenn A. Fry Award Lecture. Optometry and Vision Science 79(9): 569-580 [PDF 8.3 MB]
Peli E. (2001) Vision multiplexing - an engineering approach to vision rehabilitation device development. Optometry and Vision Science, 78(5): 304-315. [PDF 938 KB]
Peli E. (2000) Field Expansion for Homonymous Hemianopia by Optically Induced Peripheral Exotropia. Optom Vision Sci, 77:453-464. [PDF 1.26 MB]
Peli E. (2000) Treating Hemianopia Using Prisms to Create Peripheral Diplopia. Vision Rehabilitation: Assessment, Intervention and Outcomes. Selected papers from Vision '99: International Conference on Low Vision. C. Stuen et al editors, Swets & Zeitlinger, Lisse, p. 104-109. [PDF (78 KB)]
Peli E. (1999) Field Expansion for Homonymous Hemianopia using Prism and Peripheral Diplopia. Technical Digest on Vision Science and it Applications, Technical Digest Series Vol 1, 74-77 (Optical Society of America, Washington, DC). [PDF (974 KB)]