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Systematic Reviews
©The Author(s) 2026.
World J Methodol. Mar 20, 2026; 16(1): 110410
Published online Mar 20, 2026. doi: 10.5662/wjm.v16.i1.110410
Table 1 Characteristics of included studies on lifestyle and glaucoma
Ref.
Study design
Intervention type
Primary outcome
Almarzouki[25], 2024Systematic reviewEnvironmental factorsNutraceutical supplementation effects
Elhusseiny and Aref[26], 2024Narrative reviewLifestyle and environmental factorsIOP, disease progression, visual field loss
Fujita et al[27], 2023Retrospective cohort studyLifestyle habitsGlaucoma incidence
Gildea et al[28], 2024Systematic reviewExerciseIOP, glaucoma severity, and progression
Kumar and Ou[29], 2023Narrative reviewLifestyle factorsIOP, neuroprotection, disease progression
Loskutova et al[30], 2019Systematic reviewNutritionIOP, visual field progression
Perez et al[31], 2019Narrative reviewLifestyle, exercise, nutritionIOP, glaucoma incidence, disease progression
Risner et al[32], 2009Review (unspecified)ExerciseIOP
Kumari and Saha[1], 2022Review (unspecified)Lifestyle modificationsIOP, disease progression
Scuteri et al[33], 2020Systematic reviewNutraceutical supplementationsIOP, visual field outcome
Table 2 Nutritional interventions and their effects
Ref.
Intervention
Effect on IOP
Effect on disease progression
Almarzouki[25], 2024Balanced dietsNot reportedNot reported
Elhusseiny and Aref[26], 2024Vitamin intake, dietary nitric oxideNot reportedLower glaucoma risk (no-rich diet)
Fujita et al[27], 2023Having breakfast, avoiding late dinnerNot reportedReduced risk of glaucoma
Loskutova et al[30], 2019Flavonoids, forskolinIOP Reduction (forskolin)Slowed visual field loss (flavonoids)
Perez et al[31], 2019Green leafy vegetables, omega-3 fatty acidsNot reportedPossibly protective
Scuteri et al[33], 2020Nutraceutical supplementsAdditional IOP reductionNot reported
Table 3 Physical activity and exercise effects
Ref.
Intervention
Effect on IOP
Effect on disease progression
Almarzouki[25], 2024Aerobic exerciseLowered IOPPotential neuroprotection
Elhusseiny and Aref[26], 2024Moderate exerciseNot reportedMay slow progression
Fujita et al[27], 2023Regular exerciseNo mention foundReduced glaucoma risk
Gildea et al[28], 2024Moderate aerobic exerciseTransient reductionsPossibly protective
Kumar and Ou[29], 2023Aerobic exerciseNot reportedNeuroprotection, slowed progression
Perez et al[31], 2019Moderate aerobic exerciseNot reportedPossibly protective
Risner et al[32], 2009Isometric and dynamic exercisesAcute decreasesNot reported
Kumari and Saha[1], 2022Exercise, yogasanasNot reportedMay influence pathophysiology
Table 4 Environmental and behavioral modifications
Ref.
Intervention
Effect on IOP
Effect on disease progression
Almarzouki[25], 2024Mindfulness practicesIOP reductionPotential neuroprotection
Elhusseiny and Aref[26], 2024Relaxation, smoking cessationPossible IOP reduction (relaxation)Slower visual field loss (smoking cessation)
Fujita et al[27], 2023Moderate alcohol, good sleepNot reportedReduced glaucoma risk
Kumar and Ou[29], 2023MindfulnessIOP reductionsNeuroprotection
Perez et al[31], 2019Smoking cessationNot reportedPossibly protective
Kumari and Saha[1], 2022Sleep posturesNot reportedMay influence pathophysiology