Definition
As early-generation visual prostheses offer only modest increases in visual acuity, it is vital that a thorough assessment of pre- and postoperative function is completed. Assessment of prosthetic vision is multimodal and requires both clinical measures (visual acuity, visual fields) and functional vision measures (orientation and mobility, activities of daily living).
Detailed Definition
Assessment of prosthetic vision is challenging, as prosthesis recipients have very poor preoperative vision (less than 20/4000, or logMAR 2.3), and in early-generation devices, the improvements in vision are small. The majority of recipients of these early-generation prosthetic devices have a condition called retinitis pigmentosa (RP), and it is common for their visual performance to fluctuate significantly in differing light conditions. Due to these factors, a detailed and multimodal assessment of prosthetic vision is...
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References
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Further Reading
Dagnelie G (2011) Visual prosthetics: physiology, bioengineering, rehabilitation. Springer, New York. ISBN 978-1-4419-0753-0
Humayun MS, Weiland JD, Chader G, Greenbaum E (2007) Artificial sight: basic research, biomedical engineering and clinical advances. Springer, New York. ISBN 978-0-387-49329-9
Tombran-Tink J, Barnstable CJ, Rizzo JF (2007) Visual prosthesis and ophthalmic devices: new hope in sight. Springer, New York. ISBN 978-1-934115-16-9
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Ayton, L. (2014). Prosthetic Vision, Assessment. In: Jaeger, D., Jung, R. (eds) Encyclopedia of Computational Neuroscience. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-7320-6_656-1
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DOI: https://doi.org/10.1007/978-1-4614-7320-6_656-1
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Prosthetic Vision, Assessment- Published:
- 03 September 2019
DOI: https://doi.org/10.1007/978-1-4614-7320-6_656-2
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Prosthetic Vision, Assessment- Published:
- 23 March 2014
DOI: https://doi.org/10.1007/978-1-4614-7320-6_656-1