J Korean Ophthalmol Soc.  2017 Feb;58(2):171-177. 10.3341/jkos.2017.58.2.171.

Relationship between Binocular Visual Function and Quality of Life in Bilateral Normal Tension Glaucoma Patients

• Park HH
• Chun YS

• KMID: 2369464
• DOI: http://doi.org/10.3341/jkos.2017.58.2.171

Abstract

PURPOSE
To analyze the effect of stereopsis and contrast sensitivity on the quality of life and to evaluate the relationship between integrated binocular visual field (IVF) and binocular visual function in bilateral normal tension glaucoma (NTG) patients.
METHODS
Stereopsis and contrast sensitivity tests were performed and compared among 44 NTG patients and 32 normal subjects. The IVF was integrated using the best location method. The correlation between visual function and subscales of the National Eye Institute Visual Function Questionnaire 25 (NEI VFQ-25) was evaluated using univariate linear regression.
RESULTS
Stereopsis and contrast sensitivity for the bilateral NTG patients were decreased compared to the normal controls. Stereopsis and contrast sensitivity exhibited a significant correlation with social functions related to vision and color vision among subscales of NEI VFQ-25. IVF mean deviation (MD) and better eye MD showed a significant correlation with stereopsis and contrast sensitivity, while worse eye MD showed no association.
CONCLUSIONS
Deterioration of stereopsis and contrast sensitivity in NTG patients affects their quality of life related to social functions and color vision. Both IVF and better eye MDs are correlated with stereopsis and contrast sensitivity in NTG patients.

Keyword

Binocular visual function; Contrast sensitivity; Normal tension glaucoma; Quality of life; Stereopsis

MeSH Terms

Color Vision
Contrast Sensitivity
Depth Perception
Humans
Linear Models
Low Tension Glaucoma*
Methods
National Eye Institute (U.S.)
Quality of Life*
Telescopes*
Visual Fields

Figure

• 

  Figure 1. Integrated visual field (IVF) of normal tension glaucoma. Schematic representation of the left (A), right (B) and IVF by best location (C). VF = visual field; MD = mean deviation; dB = decibels.

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