Active lifestyle tied to reduced visual field decline in primary open angle glaucoma

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Je Hyun Seo, MD, PhD, and colleagues reported that increased amounts of time spent in physical activity are independent predictors of a slower rate of visual field mean deviation (VF MD) loss in patients with primary open angle glaucoma (POAG). They published their results in the Journal of Glaucoma.¹

Seo is the first study author from the Viterbi Family Department of Ophthalmology, Hamilton Glaucoma Center, Shiley Eye Institute, University of California, San Diego, La Jolla, CA, and the Veterans Medical Research Institute, Veterans Health Service Medical Center, Seoul, South Korea. Seo was joined in this study by colleagues from the Department of Ophthalmology, Bernard and Shirlee Brown Glaucoma Research Laboratory, Edward S. Harkness Eye Institute, Columbia University Medical Center, New York, and the Department of Ophthalmology and Vision Sciences, Heersink School of Medicine, The University of Alabama at Birmingham, Birmingham, also participated in the study.

Physical activity study methods and results

The investigators conducted this longitudinal study with the goal of determining how physical activity affects the progression of the VF damage in patients with POAG.

The study participants with POAG had undergone five or more visits and had 2 or more years of follow-up VFs. All patients completed a physical activity questionnaire at baseline.

The investigators explained that the physical activity levels were assessed using the physical activity index (PAI), metabolic equivalents of task (MET)-minutes, and walking pace.

Seo and colleagues reported that 131 eyes of 80 patients (median patient age, 68.6 years; interquartile range [IQR]: 59.3–77.8 years) with POAG were included; the median follow-up time was 4.9 years (IQR: 4.0–6.7 years). The median baseline VF MD was −3.5 (IQR: −8.3 to −1.3).

The univariable analysis revealed that slower VF MD loss was associated with the active PAI category (0.30 decibel [dB]/year; 95% confidence interval [CI]: 0.01–0.58 vs. the inactive PAI category; P=0.041) and higher amounts of physical activity (0.14 [95% CI: 0.01–0.27] dB/year per 1,000 MET-minutes; P=0.036).

They did not find a significant association between the rate of VF MD loss for the baseline VF MD (P=0.263) and walking pace (P>0.05).

The multivariable analysis, which included the glaucoma severity and other covariates, found that the slower VF MD loss was associated with higher amounts of physical activity (0.15 [95% CI: 0.02–0.28] dB/year per 1,000 MET-minutes; P=0.024).

The investigators concluded the higher amounts of physical activity are independent predictors of a slower rate of VF MD loss. They advised that further research should explore whether increased rates of physical activity protect against glaucoma progression.

Related research

Another study out of the Wilmer Eye Institute, The Johns Hopkins University, Baltimore, also reported the beneficial effects of physical activity on slower VF loss.²

First author Moon Jeong Lee, MD, and colleagues conducted a longitudinal observational study that included older adults who were glaucoma suspects or had frank glaucoma.

Participants wore accelerometers for 1 week to measure the daily average steps, minutes of moderate-to-vigorous activity (MVPA), and minutes of non-sedentary activity. The main outcome was the pointwise changes in the VF sensitivity associated with physical activity.

A total of 141 patients (mean age, 64.9 ± 5.8 years) were enrolled. The eye MD at the time of physical activity assessment was −6.6 dB and the average number of daily steps was 5,613 ± 3,158. The unadjusted average rate of VF loss was 0.36 dB/year (95% CI: −0.37, −0.35). Multivariable analysis showed that slower VF loss was observed when patients recorded higher numbers of steps (+0.007 dB/year/1,000 daily steps, P<0.001), more moderate-to-vigorous activity (+0.003 dB/year/10 more minutes of MVPA daily, P<0.001), and more non-sedentary activity (+0.007 dB/year/30 more minutes of non-sedentary time daily, P=0.005).

The factors that were associated with a faster rate of VF loss included older age, non-Caucasian race, glaucoma surgery, cataract surgery, and moderate baseline VF damage (−6 dB≥MD>– 12 dB) as opposed to mild VF damage (MD>−6 dB). Similar associations between the accelerometer-measured physical activity at baseline and rates of VF loss were observed over other time periods (eg, within 1, 3, and 5 years of activity assessment), the authors reported.

They concluded, “Increased walking, greater time spent doing moderate-to-vigorous physical activity, and more time spent in non-sedentary activity were associated with slower rates of VF loss in a treated population of glaucoma patients, with an additional 5,000 daily steps or 2.6 hours of non-sedentary physical activity decreasing the average rate of VF loss by roughly 10%. Future prospective studies should determine if physical activity can slow VF loss in glaucoma and/or if progressive VF loss results in activity restriction. If the former is confirmed, this would mark physical activity as a novel modifiable risk factor for preventing glaucoma damage.”

References

1. Seo JH, Nishida T, Moghimi S, et al. Impact of physical activity levels on visual field progression in individuals with glaucoma. J Glaucoma. 2025;34:499-506. DOI: 10.1097/IJG.0000000000002576

2. Lee MJ, Wang J, Friedman DS, Boland MV, De Moraes CG, Ramulu PY. Greater physical activity is associated with slower visual field loss in glaucoma. Ophthalmology. 2018;126:958–64. doi:10.1016/j.ophtha.2018.10.012