ArticleTranslational vision science & technology2013
Considering Apical Scotomas, Confusion, and Diplopia When Prescribing Prisms for Homonymous Hemianopia.
Article in Translational vision science & technology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 42 citations in OpenAlex.
- Review: Binocular double vision in the presence of visual field loss.Journal of vision · 2024Review
- Understanding viewpoint changes in peripheral prisms for field expansion by virtual reality simulation.Biomedical optics express · 2024Article
- The effect of visual rivalry in peripheral head-mounted displays on mobility.Scientific reports · 2023Article
- Oblique multi-periscopic prism for field expansion of homonymous hemianopia.Biomedical optics express · 2023Article
- Development and 5-year Evaluation of Diagnosis-Specific Protocols for Visual Neuro-Rehabilitation in a Multicenter Inpatient Rehabilitation Network.Archives of rehabilitation research and clinical translation · 2023Article
- Effects of Perceptual-motor Training on Collision Judgments with Peripheral Prism Expanded Vision.Optometry and vision science : official publication of the American Academy of Optometry · 2022Article
- An implementation of Bubble Magnification did not improve the video comprehension of individuals with central vision loss.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2021Article
- 2017 Charles F. Prentice Award Lecture: Peripheral Prisms for Visual Field Expansion: A Translational Journey.Optometry and vision science : official publication of the American Academy of Optometry · 2020Article
- Multi-periscopic prism device for field expansion.Biomedical optics express · 2020Article
- Field Expansion with Multiplexing Prism Glasses Improves Pedestrian Detection for Acquired Monocular Vision.Translational vision science & technology · 2020Article
- Design of 45° periscopic visual field expansion device for peripheral field loss.Optics communications · 2020Article
- No Useful Field Expansion with Full-field Prisms.Optometry and vision science : official publication of the American Academy of Optometry · 2018Article
- Field Expansion for Acquired Monocular Vision Using a Multiplexing Prism.Optometry and vision science : official publication of the American Academy of Optometry · 2018Article
- High prevalence of strabismic visual field expansion in pediatric homonymous hemianopia.PloS one · 2018Article
- Measuring Pedestrian Collision Detection With Peripheral Field Loss and the Impact of Peripheral Prisms.Translational vision science & technology · 2018Article
- Driving With Hemianopia VI: Peripheral Prisms and Perceptual-Motor Training Improve Detection in a Driving Simulator.Translational vision science & technology · 2018Article
- Multiplexing Prisms for Field Expansion.Optometry and vision science : official publication of the American Academy of Optometry · 2017Article
- Driving with homonymous visual field loss: a review of the literature.Clinical & experimental optometry · 2016Review
- High-Power Prismatic Devices for Oblique Peripheral Prisms.Optometry and vision science : official publication of the American Academy of Optometry · 2016Article
- A Pilot Study of Perceptual-Motor Training for Peripheral Prisms.Translational vision science & technology · 2016Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
Abstract
purposeWhile prisms are commonly prescribed for homonymous hemianopia to extend or expand the visual field, they cause potentially troubling visual side effects, including nonveridical location of perceived images, diplopia, and visual confusion. In addition, the field behind a prism at its apex is lost to an apical scotoma equal in magnitude to the amount of prism shift. The perceptual consequences of apical scotomas and the other effects of various designs were examined to consider parameters and designs that can mitigate the impact of these effects.
methodsVarious configurations of sector and peripheral prisms were analyzed, in various directions of gaze, and their visual effects were illustrated using simulated perimetry. A novel "percept" diagram was developed that yielded insights into the patient's view through the prisms. The predictions were verified perimetrically with patients.
resultsThe diagrams distinguish between potentially beneficial field expansion via visual confusion and the pericentrally disturbing and useless effect of diplopia, and their relationship to prism power and gaze direction. They also illustrate the nonexpanding substitution of field segments of some popular prism designs.
conclusionsYoked sector prisms have no effect at primary gaze or when gaze is directed toward the seeing hemifield, and they introduce pericentral field loss when gaze is shifted into them. When fitted unilaterally, sector prisms also have an effect only when the gaze is directed into the prism and may cause a pericentral scotoma and/or central diplopia. Peripheral prisms are effective at essentially all gaze angles. Since gaze is not directed into them, they avoid problematic pericentral effects. We derive useful recommendations for prism power and position parameters, including novel ways of fitting prisms asymmetrically. TRANSLATIONAL RELEVANCE: Clinicians will find these novel diagrams, diagramming techniques, and analyses valuable when prescribing prismatic aids for hemianopia and when designing new prism devices for patients with various types of field loss.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.