Abstract
Purpose :
To investigate the impact of visual field progression on measures of the ability to perform activities of daily leaving, vision-related quality of life (VRQoL), and clinical findings in patients with glaucoma.
Methods :
Patients with moderate-stage glaucoma were studied. Subjects received an ocular examination, automated visual field (VF) test and spectral-domain optical coherence tomography scan. Contrast sensitivity was measured with the Pelli-Robson and the Spaeth-Richman Contrast Sensitivity Test (SPARCS). Vision-related performance was evaluated with the Compressed Assessment of Ability Related to Vision (CAARV). VRQoL and glaucoma symptoms were assessed by the National Eye Institute Visual Function Questionnaire (NEI-VFQ-25) and the Modified Glaucoma Symptom Scale (MGSS). All tests were performed at baseline and at 1- and 2-year follow-up visits. Correlations between changes in VF mean deviation (MD) and the other outcome measures were computed. Comparisons of outcome measures were made between patients with and without VF progression (defined as MD change of ≥1dB/year loss).
Results :
A total of 138 patients completed 2-year follow-up. The mean (SD) age was 65.6 (8.9) years. The mean rate of VF MD change over 2-year period was -0.27 dB/year. Significant correlations were found between VF change and: (1) contrast sensitivity measures (Pelli-Robson test: r=0.29, P=0.0006 and SPARCS total score: r=0.22, P=0.008); (2) VRQoL Measures (NEI-VFQ-25 subscales scores for mental health, role limitations, and driving: r=0.20, P=0.02; r=0.28, P=0.0009; r=0.20, P=0.03, respectively). Patients who had VF progression had significant change in their IOP, DDLS, and contrast sensitivity (Pelli-Robson and SPARCS total scores) compared with non-progressing patients (P<0.05). There was a trend toward significant difference in subscales of NEI-VFQ-25 between patients with VF progression and stable patients (P<0.10, Table 1).
Conclusions :
VF progression in the better eye was positively correlated with contrast sensitivity measures and subjective measures of VRQoL after a 2-year period. Patients with VF progression had significantly decreased contrast sensitivity, increased IOP and DDLS, and a trend toward significant decrease in some NEI-VFQ-25 subscale scores compared with stable patients.
This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.