Global Prevalence of Presbyopia and Vision Impairment from Uncorrected Presbyopia

Towards better estimates of uncorrected presbyopia.

Presbyopia and near-vision impairment in rural northern China.

PURPOSE Presbyopia limits activities of daily living, but population-based data from rural China are scarce. METHODS A population-based, cross-sectional study was conducted in 2009 among all persons aged 40+ years in a rural area near Shenyang, China. Distance and near VA were measured using logMAR E charts. Individuals with pinhole-corrected distance vision ≥20/63 underwent detailed eye exam...

Mono vision LASIK for Presbyopia

Materials and methods: Prospective analysis of 34 eyes of 17 patients over 40 years of age treated with Allegreto wavefront LASIK system. The study was conducted at MEDEA LASIK Centre, Little Flower hospital, Angamaly. Average patient age was 53.3 years. Pre operative refraction ranged from – 5.75 to + 2.25 diopters(D). Non dominant eyes underwent Presbyopic LASIKan aspheric pupil size dependan...

Global cost of correcting vision impairment from uncorrected refractive error.

OBJECTIVE To estimate the global cost of establishing and operating the educational and refractive care facilities required to provide care to all individuals who currently have vision impairment resulting from uncorrected refractive error (URE). METHODS The global cost of correcting URE was estimated using data on the population, the prevalence of URE and the number of existing refractive ca...

Quality of life and near vision impairment due to functional presbyopia among rural Chinese adults.

PURPOSE To evaluate the impact of near-vision impairment on visual functioning and quality of life in a rural adult population in Shenyang, northern China. METHODS A population-based, cross-sectional study was conducted among persons aged 40+ years, during which functional presbyopia (correctable presenting near vision < 20/50 [N8] at 40 cm) was assessed. Near-vision-related quality of life a...