White-to-white 角膜的直径: 在健康伊朗的人口的正常价值与 Orbscan II 获得了

• 作者: Asieh Ehsaei Hamid Gharaee Masoud Shafiee Mojtaba Abrishami
• 来源期刊: 国际眼科杂志：英文版
• 学科: 医学
• 关键词: white-to-white CORNEAL DIAMETER ORBSCAN II NORMAL POPULATION
• 年，卷（期）: 2014,（2）
• 页码范围: 309-312
• 页数: 4页
• 分类号: R772.2

摘要

AIM:To determine the normative values of white-towhite corneal diameter with Orbscan II Topography System and to compare right and left eyes data in the normal young population.METHODS:A total of 1001 healthy participants aged18-45y participated in this observational cross-sectional study.The study population consisted of 616 female and385 male subjects.The corneal diameter was measured with the Orbscan II.The differences between genders,between right and left eyes and age-related changes were evaluated.Statistical analyses were performed using Student’s t-test.RESULTS:The average white-to-white distance in our study population was recorded as 11.65±0.36 mm(median:11.60 mm,mode:11.70 mm,minimum:10.50mm and maximum:13.60 mm).The white-to-white distance was 11.60±0.35 mm in males and 11.71±0.36 mm in females which was statistically different between genders(P【0.01).However,white-to-white distance was not statistically different between right and left eyes.In addition,this parameter decreased with increasing age.Considering 95%confidence interval,corneal diameter less than 10.93 mm and greater than 12.34 mm would be considered as microcornea and megalocornea,respectively based on this study population,using the Orbscan II topography.CONCLUSION:Detailed description and analysis of corneal diameter with Orbscan demonstrate that the obtained average value of horizontal white-to-white is higher in male than female and decreases slightly with increasing age.Our data also suggests the cut off values for definition of microcornea and megalocornea,which can be employed with this population.