TY - JOUR T1 - Prevalence of Presbyopia in Patients Examined in Optometry Clinic Affiliated with Rehabilitation Faculty of Shahid Beheshti Medical University (Short Report) TT - بررسی شیوع پیرچشمی در مراجعین به کلینیک اپتومتری دانشکده توانبخشی دانشگاه علوم پزشکی شهید بهشتی (گزارش کوتاه) JF - RUMS_JOURNAL JO - RUMS_JOURNAL VL - 11 IS - 6 UR - http://journal.rums.ac.ir/article-1-1617-en.html Y1 - 2012 SP - 599 EP - 604 KW - Presbyopia KW - Refractive error KW - Age and gender N2 -   Background and Objectives: This study aimed to determine the prevalence of presbyopia in patients examined in Optometry clinic of Faculty of Rehabilitation of Shahid Beheshti Medical Univessity.   Meterials and Methods : In this crosse- sectional study, 600 files of the patients examined in the optometry clinic of Rehabilitation Faculty of Shahid Beheshti Medical university in year 2008/2009 were analyzed. Variables included age, sexe, amount and type of refractive errors, presbyopia and health of anterior and posterior eye segment. The patients were divided into two groups: groupe 1, included the pattients ages less than 40 and groupe 2, patients ages 40 years and older. Groupe 2, were divided. The deta were analyzed using X2 and descriptive test.   Results : The mean and standard deviation of ages of all the 600 patients' was 34.21±21 and for presbyopic patients was 55.53±10.9 years. Prevalence of presbyopia in total population was 41% and in population over 40 years, was 92.5%. From 246 presbyopic patients, 131 cases (53.3%) were females and 115 cases (46.7%) were males. There was a significant statistica l difference between the presbyopia patients compared to the other groups (p M3 ER -