Five-year incidence of primary glaucoma and related risk factors - The Handan eye study.
Zhang Ye, Hao Jie, Zhang Qing, Wang Jin, Li Si Zhen, Thomas Ravi et al.
This study found a 1.6% 5-year glaucoma incidence in rural China. Older age, higher IOP, and larger cup-to-disc ratio are key risk factors, helping identify high-risk individuals for early intervention.