May 2004
Volume 45, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2004
Study of Subjective Refraction Values Obtained Using Simultaneous Binocular Subjective (Patient–Assisted) Autorefractor
Author Affiliations & Notes
  • K. Nishio
    Ophthalmic & Medical Instruments, TOPCON CORPORATION, Hasunuma–cho,Itabashi–ku, Japan
  • T. Haraguchi
    Ophthalmic & Medical Instruments, TOPCON CORPORATION, Hasunuma–cho,Itabashi–ku, Japan
  • T. Hayashi
    Ophthalmic & Medical Instruments, TOPCON CORPORATION, Hasunuma–cho,Itabashi–ku, Japan
  • Y. Fukuma
    Ophthalmic & Medical Instruments, TOPCON CORPORATION, Hasunuma–cho,Itabashi–ku, Japan
  • I. Goto
    Ophthalmology, Tokyo Women's Mwdical University Daini Hospital, Nishioku,arakawaka–ku, Japan
  • T. Tachikkawa
    Ophthalmology, Tokyo Women's Mwdical University Daini Hospital, Nishioku,arakawaka–ku, Japan
  • M. Matsubara
    Ophthalmology, Tokyo Women's Mwdical University Daini Hospital, Nishioku,arakawaka–ku, Japan
  • K. Negishi
    Ophthalmology, Keio University School of Medicine, Shinano–cho,Shinjyuku–ku, Japan
  • K. Ohno
    Ophthalmology, National Tokyo Medical Center, Higashigaoka,Meguro–ku, Japan
  • T. Noda
    Ophthalmology, National Tokyo Medical Center, Higashigaoka,Meguro–ku, Japan
  • Footnotes
    Commercial Relationships  K. Nishio, None; T. Haraguchi, None; T. Hayashi, None; Y. Fukuma, None; I. Goto, None; T. Tachikkawa, None; M. Matsubara, None; K. Negishi, None; K. Ohno, None; T. Noda, None.
  • Footnotes
    Support  none
Investigative Ophthalmology & Visual Science May 2004, Vol.45, 2755. doi:
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      K. Nishio, T. Haraguchi, T. Hayashi, Y. Fukuma, I. Goto, T. Tachikkawa, M. Matsubara, K. Negishi, K. Ohno, T. Noda; Study of Subjective Refraction Values Obtained Using Simultaneous Binocular Subjective (Patient–Assisted) Autorefractor . Invest. Ophthalmol. Vis. Sci. 2004;45(13):2755.

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

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Abstract

Abstract: : Purpose:To conduct a comparative review of the subjective refraction measurements using the newly developed simultaneous binocular subjective (patient–assisted) autorefractor (BV–1000, Topcon). Methods:Subjective refraction tests were conducted on 48 eyes of 24 healthy adults aged 36.6 ± 9.6 years by optometrists (lens replacement) and BV–1000 and the results were compared. In the subjective refraction tests, autorefractometry by both techniques was done and then, based on the refractive values, red–green tests, cross–cylinder tests, and best–corrected visual acuity tests were performed and the final refraction values were determined. The values of the spherical equivalent (S value), cylinder (C value), and the axis of astigmatism were compared between the two measurement methods. Results:The differences in refraction measurement values between lens replacement and BV–1000 were as follows: S value: ± 0.75 D ≤ (98%), r2 = 0.98; C value ± 0.25 D ≤ (90%), r2 = 0.87; and axis of astigmatism ± 10° ≤ (100%). The differences did not reach significance. Conclusions:In subjective refraction tests, there was no significant difference in refraction values between the lens replacement method and BV–1000, and the subjective optometry values with the BV–1000 appear to be valid.

Keywords: binocular vision/stereopsis • refraction 
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