Purpose: To investigate the significance of vision-specific quality of life (QOL) in glaucoma patients based on the location of visual field defects.
Patients and Methods: We examined 336 eyes of 168 patients. The 25-item National Eye Institute Visual Function Questionnaire was used to evaluate patients’ QOL. Visual field testing was performed using the Humphrey Field Analyzer; the visual field was divided into 10 clusters. We defined the eye with better mean deviation as the better eye and the fellow eye as the worse eye. A single linear regression analysis was applied to assess the significance of the relationship between QOL and the clustered visual field.
Results: The strongest correlation was observed in the lower paracentral visual field in the better eye. The lower peripheral visual field in the better eye also showed a good correlation. Correlation coefficients in the better eye were generally higher than those in the worse eye. For driving, the upper temporal visual field in the better eye was the most strongly correlated (r=0.509). For role limitation and peripheral vision, the lower peripheral visual field in the better eye had the highest correlation coefficients at 0.459 and 0.425, respectively.
Conclusions: Overall, clusters in the lower hemifield in the better eye were more strongly correlated with QOL than those in the worse eye. In particular, the lower paracentral visual field in the better eye was correlated most strongly of all. Driving, however, strongly correlated with the upper hemifield in the better eye.
Department of Ophthalmology, Niigata University Medical and Dental Hospital, Niigata, Japan
Presented as a poster at the 2010 Annual Meeting of the American Academy of Ophthalmology (Scientific Poster 399) October 2010, Chicago.
Disclosure: Supported in part by a Grant-in-Aid for Scientific Research (23592556) from the Ministry of Education, Culture, Sports, Science and Technology of Japan. The authors declare no conflict of interest.
T.F.: conception and design, writing the article, data collection, provision of materials, patients, or resources, statistical expertise; T.Y.: data collection and literature search; H.A.: administrative, technical, or logistic support.
The Committee for Research Ethics at Niigata University Medical and Dental Hospital approved the study protocol and the study was conducted according to the tenets of the Declaration of Helsinki.
Reprints: Hideko Sawada, MD, PhD, Department of Ophthalmology, Niigata University Medical and Dental Hospital, 1-757 Asahimachi, Niigata 951-8510, Japan (e-mail: firstname.lastname@example.org).
Received November 30, 2011
Accepted June 12, 2012