Comparison of intraocular pressure readings with Perkins,Tonopen,iCare 200,and iCare Home to manometry in cadaveric eyes
作者机构：Department of OphthalmologyUniversity of ColoradoUC Health Sue Anschutz-Rodgers Eye CenterAuroraColorado 80045USA
出 版 物：《International Journal of Ophthalmology(English edition)》 (国际眼科杂志（英文版）)
年 卷 期：2022年第15卷第12期
页 面：2022-2027页
核心收录：
学科分类：1002[医学-临床医学] 1010[医学-医学技术（可授医学、理学学位）] 10[医学]
主 题：intraocular pressure ocular tonometry manometry
摘 要：AIM:To compare intraocular pressure(IOP)readings obtained with Perkins tonometry,i Care Home,i Care 200,and Tonopen to IOP readings obtained with the manometer of a perfusion system to assess the accuracy and reproducibility of each method of tonometry at set ***:The IOP of human cadaveric eyes(n=2)was measured using a manometer inserted into the eye through the optic *** measurements were obtained using a Perkins tonometer,i Care Home,i Care 200,and *** measurements were compared to set point IOP measurements of a manometer to determine accuracy and reproducibility of each ***:Mean IOP readings obtained with the Perkins tonometer compared to manometer readings demonstrated a difference of-1.0±5.0 mm Hg(P=0.45),indicating a lower reading on average than manometery although not *** IOP difference between iCare 200 and manometer was 5.3±2.2 mm Hg(P0.0001).Mean difference in IOP between iCare Home and manometer was 3.5±2.4 mm Hg(P=0.0004).Mean IOP difference compared to manometer was 4.6±4.0 mm Hg for the Tonopen(P0.0001).IOP measurements obtained with the Perkins tonometer demonstrated a standard deviation of 5.0 mm Hg while the Tonopen measurements demonstrated a 4.0 mm Hg standard *** comparison,iCare 200 and iCare Home demonstrated 2.2 and 2.4 mm Hg standard deviation,***:Applanation tonometry produces more accurate IOP readings than rebound tonometry or Tonopen,however it demonstrates greater variability than the other forms of *** tonometry is more reproducible but tends to over-estimate IOP.
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