J Korean Ophthalmol Soc.  2014 Sep;55(9):1355-1360. 10.3341/jkos.2014.55.9.1355.

The Effect of One Myopic Eye on Visual Field Testing

• Shin YK
• Lee MW
• Cho KJ
• Chang MH

• KMID: 2217120
• DOI: http://doi.org/10.3341/jkos.2014.55.9.1355

Abstract

PURPOSE
To investigate the effect of lens-corrected myopia on Humphrey Matrix and Humphrey Field Analyser (HFA).
METHODS
A total of 59 lens-corrected myopic eyes of 59 normal volunteers underwent Humphrey Field Analyser and Humphrey Matrix (FDP) testing. Spherical equivalent divided into 3 groups: -3 < or = D < 0, -6 < or = D < -3, D < -6. HFA and FDP sensitivity for mean deviation (MD) and pattern standard deviation (PSD), as well as axial length and astigmatism, were compared between these 3 groups.
RESULTS
The MD of the fields as determined by the HFA decreased significantly as the refractive errors increased, despite correction. However, there were no significant differences in MD or PSD of FDP, or in the PSD of HFA. There were no significant differences in axial length or astigmatism as calculated by MD and PSD for HFA and FDP.
CONCLUSIONS
The spherical equivalent showed that lens correction alters the MD for HFA but not for FDP.

Keyword

Humphrey matrix perimetry; Humphrey perimetry; Myopia

MeSH Terms

Astigmatism
Healthy Volunteers
Myopia
Refractive Errors
Visual Field Tests*

Figure

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  Figure 1. Graph shows each groups of mean deviation (MD) and pattern standard deviation (PSD) for Humphrey Field Analyser (HFA), Humphrey Matrix (FDP) test. (A) The MD for HFA test shows moderate (p < 0.05) and severe myopia groups (p < 0.001) were significantly lower than mild group despite of correction. (B, C, D) MD for FDP, PSD for HFA, PSD for FDP shows not significant differences. FDP = frequency doubling perimeter. N.S = non specific.

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  Figure 2. Scatter diagram shows correlation of mean deviation (MD), pattern standard deviation (PSD) with refraction for Humphrey Field Analyser (HFA), PSD (A) positive correlation of MD for Humphrey Field Analyser test (B, C, D) others were not significantly different. FDP = frequency doubling perimeter. N.S = non specific.

Reference

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