May 2004
Volume 45, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2004
Visual field performance is reduced by concomitant handsfree conversation on a cellular telephone
Author Affiliations & Notes
  • Y. Barkana
    Ophthalmology, Assaf Harofe Med Ctr, Beer Yaakov, Israel
  • A. Kaplan
    Ophthalmology, Assaf Harofe Med Ctr, Beer Yaakov, Israel
  • I. Avni
    Ophthalmology, Assaf Harofe Med Ctr, Beer Yaakov, Israel
  • Footnotes
    Commercial Relationships  Y. Barkana, None; A. Kaplan, None; I. Avni, None.
  • Footnotes
    Support  none
Investigative Ophthalmology & Visual Science May 2004, Vol.45, 5468. doi:
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      Y. Barkana, A. Kaplan, I. Avni; Visual field performance is reduced by concomitant handsfree conversation on a cellular telephone . Invest. Ophthalmol. Vis. Sci. 2004;45(13):5468.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Abstract: : Purpose: To quantify the attention–diverting effect of cellular–phone conversation on visual field awareness using a new model based on the Humphrey visual field analyzer. Methods: 20 male and 20 female normal participants performed 3 Esterman visual field examinations with the Humphrey Field Analyzer II. The second exam was used as baseline. During the third exam, the participant engaged in a hands–free conversation using the a cellular phone. The conversation was based on a standard questionnaire and simulated ordinary conversation. Visual field performance parameters were compared between the 2nd–baseline and the 3rd–test exams and included: number of points missed for the left and right eyes, test duration, rate of fixation losses, false–positive and false–negative errors. Results: A learning effect was observed with improved performance from the 1st to the 2nd exam. During phone conversation, missed points increased from mean 1.03 to 4.1 (p=0.02) in the right eye and from 1.1 to 3.2 (p=0.008) in the left eye. Missed points were mainly in the peripheral field. Fixation loss increased from mean10.67% to 29.84% (p=0.005) and from 6.91% to 36.78% (p<0.0001) for the right and left eyes, respectively. False–negative and false–positive rates were low. Test duration significantly increased by a mean of 16% per stimulus. Conclusions:The attention–diverting effect of cellular–phone conversation was quantified with a novel model and found to be significant.

Keywords: clinical (human) or epidemiologic studies: risk factor assessment • perception • perimetry 
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