RT Journal Article T1 BCLA CLEAR presbyopia: epidemiology and impact A1 Markoulli, Maria A1 García Porta, Nery A1 Wolffsohn, James S. K1 Age K1 Impact of presbyopia K1 Patient-reported outcome measures K1 Presbyopia prevalence K1 Quality of life K1 Questionnaire K1 Risk factors K1 Urban AB The global all-ages prevalence of epidemiologically-measured ‘functional’ presbyopia was estimated at 24.9% in 2015, affecting 1.8 billion people. This prevalence was projected to stabilise at 24.1% in 2030 due to increasing myopia, but to affect more people (2.1 billion) due to population dynamics. Factors affecting the prevalence of presbyopia include age, geographic location, urban versus rural location, sex, and, to a lesser extent, socioeconomic status, literacy and education, health literacy and inequality. Risk factors for early onset of presbyopia included environmental factors, nutrition, near demands, refractive error, accommodative dysfunction, medications, certain health conditions and sleep. Presbyopia was found to impact on quality-of-life, in particular quality of vision, labour force participation, work productivity and financial burden, mental health, social wellbeing and physical health. Current understanding makes it clear that presbyopia is a very common age-related condition that has significant impacts on both patient-reported outcome measures and economics. However, there are complexities in defining presbyopia for epidemiological and impact studies. Standardisation of definitions will assist future synthesis, pattern analysis and sense-making between studies. PB Elsevier YR 2024 FD 2024-08 LK https://hdl.handle.net/10347/43335 UL https://hdl.handle.net/10347/43335 LA eng NO Contact Lens and Anterior Eye Volume 47, Issue 4, August 2024, 102157 DS Minerva RD 29 abr 2026