J Korean Ophthalmol Soc.  2013 Jun;54(6):919-926. 10.3341/jkos.2013.54.6.919.

Comparison of Mean Deviation Between Integrated Binocular Visual Field and Monocular Visual Field

• Chun YS
• Park IK

• KMID: 2217268
• DOI: http://doi.org/10.3341/jkos.2013.54.6.919

Abstract

PURPOSE
To compare the mean deviation (MD) between monocular and integrated binocular visual field (BVF).
METHODS
Thirty-six patients with glaucoma in at least 1 eye were recruited for the present study. Seventy-two threshold sensitivities of the BVF were obtained without additional visual field test by the Best Location and Binocular Summation methods using the 2 monocular visual fields of central 30degrees. The MD of the BVF was obtained by comparison to the value distribution in the age-matched population with normal BVF. After defining the better eye with the better MD value from the 2 eyes, comparison of the MDs between individual eyes and the integrated BVF were assessed. In addition, the MDs between the integrated BVF and actual BVF were compared in 11 patients.
RESULTS
In patients with a mean age of 58.7 years, the MD of the better eye was -2.3 dB, and the worse eye was -4.9 dB (p < 0.01). There was a significant difference between the 2 MDs derived from Best Location and Binocular Summation (-1.7 and -2.0 dB, respectively p = 0.045). The MDs according to BVF more improved than the better eye (p < 0.01 for both). There was no significant difference in MDs between integrated BVF and actual BVF (-1.9 vs -2.0, -2.3 vs -2.0, respectively p > 0.1).
CONCLUSIONS
The integrated BVF more improved than the better eye. When providing guidance to glaucoma patients regarding therapeutic decisions considering the MD of IVF may be important.

Keyword

Glaucoma; Integrated binocular visual field; Mean deviation

MeSH Terms

Eye
Glaucoma
Humans
Telescopes
Visual Field Tests
Visual Fields

Figure

• 

  Figure 1. Schematic representation of the left (A), right (B), in-tegrated binocular visual field (BVF) by best location (D), BVF by binocular summation (E), and actual binocular visual field test (E). Four points (black squares of BVF) corresponding to the blind spots of both eyes without correlation between the right eye and left eye were excluded and threshold sensitivities of BVF were integrated from right and left eyes. VF (visual field).

• 

  Figure 2. Boxplot for the mean deviations of the integrated binocular visual field (BVF) by best location and binocular summation, the better and worse eye visual fields.

Reference

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