NDLI: Adaptation to progressive lenses by presbyopes

Content Provider	IEEE Xplore Digital Library
Author	Alvarez, T.L. Han, S. Kania, C. Kim, E. Tsang, O. Semmlow, J.L. Granger-Donetti, B. Pedrono, C.
Copyright Year	2009
Description	Author affiliation: Department of Bioengineering, University of Medicine and Dentistry of New Jersey, Piscataway, USA (Semmlow, J.L.) \|\| Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, USA (Alvarez, T.L.; Han, S.; Kania, C.; Kim, E.; Tsang, O.) \|\| Vision Science Department, Essilor International, Paris, France (Granger-Donetti, B.; Pedrono, C.)
Abstract	All humans will become presbyopic as part of the aging process where the eye losses the ability to focus at different depths. Progressive additive lenses (PALs) allow a person to focus on objects located at near versus far by combing lenses of different strengths within the same spectacle. However, it is unknown why some patients easily adapt to wearing these lenses while others struggle and complain of vertigo, swim, and nausea as well as experience difficulties with balance. Sixteen presbyopes (nine who adapted to PALs and seven who had tried but could not adapt) participated in this study. This research investigated vergence dynamics and its adaptation using a short-term motor learning experiment to asses the ability to adapt. Vergence dynamics were on average faster and the ability to change vergence dynamics was also greater for presbyopes who adapted to progressive lenses compared to those who could not. Data suggest that vergence dynamics and its adaptation may be used to predict which patients will easily adapt to progressive lenses and discern those who will have difficulty.
Starting Page	143
Ending Page	146
File Size	703264
Page Count	4
File Format	PDF
ISBN	9781424420728
DOI	10.1109/NER.2009.5109255
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-04-29
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Eyes Humans Muscles Open loop systems Retina vergence USA Councils presbyopia Aging oculomotor control Vision defects Lenses Biomedical engineering
Content Type	Text
Resource Type	Article

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