June 2017
Volume 58, Issue 8
Open Access
ARVO Annual Meeting Abstract  |   June 2017
Comparison of color visual acuity measured using a liquid crystal display and a paper-based chart
Author Affiliations & Notes
  • Yoshiki Tanaka
    Vision Research Labolatory, Chukyo Eye Clinic, Nagoya, Japan
  • Mari Takagi
    Japan Community Health care Organization Chukyo Hospital, Nagoya, Japan
  • Sho Yokoyama
    Japan Community Health care Organization Chukyo Hospital, Nagoya, Japan
  • Rie Horai
    Vision Research Labolatory, Chukyo Eye Clinic, Nagoya, Japan
  • Shoko Tanabe
    Vision Research Labolatory, Chukyo Eye Clinic, Nagoya, Japan
  • Kazuo Ichikawa
    Vision Research Labolatory, Chukyo Eye Clinic, Nagoya, Japan
  • Footnotes
    Commercial Relationships   Yoshiki Tanaka, None; Mari Takagi, None; Sho Yokoyama, None; Rie Horai, None; Shoko Tanabe, None; Kazuo Ichikawa, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science June 2017, Vol.58, 5406. doi:
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      Yoshiki Tanaka, Mari Takagi, Sho Yokoyama, Rie Horai, Shoko Tanabe, Kazuo Ichikawa; Comparison of color visual acuity measured using a liquid crystal display and a paper-based chart. Invest. Ophthalmol. Vis. Sci. 2017;58(8):5406.

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

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Abstract

Purpose : In the past, we reported the color visual acuity (CVA) of several eye conditions and under several environmental conditions using a personal computer (PC) and Liquid Crystal Display (LCD). This study compared the CVA measured using an LCD and a paper-based chart (prototype) to obtain a simplified measurement of CVA.

Methods : Eleven normal subjects (11 eyes) were enrolled in this study. None of the subjects had any ocular disease or color anomaly. The mean age of the participants was 33.55 ± 7.54 years (age range, 26–47 years). The mean spherical equivalent was -2.83 ± 2.06, while the best corrected visual acuity was 20/13. Red (R) and Green-Yellow (GY), Blue-Green (BY), and Blue-Purple (BP) were used as the stimulus colors. The background color was achromatic (D65). CG245W (EIZO corporation) was adopted for the measuring the CVA on LCD. However, a paper-based chart was fixed on the frame for the visual acuity test. The LCD and paper-based chart tests were conducted in a dark room and under two ambient lighting conditions, respectively. The two ambient lighting conditions were as follows: fluorescent light (D65) to the frame and room illumination (condition 1 [C1]) and no fluorescent light (D65) to the frame but with room illumination (condition 2 [C2]).

Results : There were significant differences in the CVA under each condition (R: p < 0.01, GY, BG, BP: p < 0.0001, Friedman test). A comparison between LCD and C1 showed significant differences (R: p < 0.01, GY: p < 0.0001, BG: p < 0.0001, BP: p < 0.05, Dunn’s post hoc test). A comparison between LCD and C2 also showed significant differences (GY: p < 0.01, Dunn’s post hoc test).

Conclusions : The CVA of R, BG, and BP measured under condition 2 was similar to the CVA measured using the LCD. The CVA of GY of the paper-based chart method was significantly different from the CVA obtained using LCD was because of the fact that there was a problem with the printing of the paper-based chart of GY. The paper-based chart was able to measure the CVA similar to the quality of CVA measured by LCD except for the paper-based chart of GY.

This is an abstract that was submitted for the 2017 ARVO Annual Meeting, held in Baltimore, MD, May 7-11, 2017.

 

The Color Visual Acuity measured using an LCD and paper-based chart.
C1 – fluorescent light (D65) of the frame : ON, the room illumination : ON.
C2 – fluorescent light (D65) of the frame : OFF, the room illumination : ON.

The Color Visual Acuity measured using an LCD and paper-based chart.
C1 – fluorescent light (D65) of the frame : ON, the room illumination : ON.
C2 – fluorescent light (D65) of the frame : OFF, the room illumination : ON.

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