PREVALENCE AND RISK FACTORS OF EARLY-ONSET PRESBYOPIA AND ASTHENOPIC SYMPTOMS AMONG INFORMAL HANDCRAFT WORKERS IN PAKISTAN: A CROSS-SECTIONAL STUDY. JMHSR [Internet]. 2025 Nov. 7 [cited 2026 Mar. 23];2(4). Available from: https://jmhsr.info/index.php/jmhsr/article/view/834