Department of Ophthalmology, Buddhist Tzu Chi General Hospital, and Institute of Medical Sciences, Hualien 970, Taiwan.
Eye (Lond). 2009 Jul;23(7):1582-8. doi: 10.1038/eye.2009.77. Epub 2009 May 1.
To compare intraocular pressure (IOP) readings between Tono-Pen tonometry and GAT, between noncontact tonometry (NCT) and GAT, and between dynamic contour tonometry (DCT) and Goldmann applanation tonometry (GAT). The correlation between IOP reading and possible confounder was identified.
This observational cross-sectional study enrolled sixty-two healthy subjects. All IOP and ocular pulse amplitude (OPA) measurements were taken by a single ophthalmologist; mean keratometric power (MK), central corneal thickness (CCT), and lens thickness (LT) were measured by a single experienced technician.
Stepwise multiple regression analysis indicated that GAT (P=0.017) and DCT (P=0.002) readings correlated positively with MK; GAT, NCT, and Tono-Pen readings correlated positively with CCT (P<0.05); NCT (P=0.035), and DCT (P=0.016) readings correlated negatively with LT; GAT (P=0.006) and Tono-Pen (P=0.009) readings correlated positively with OPA.
The K, CCT, LT, and OPA are confounders in tonometry readings.
比较眼压（IOP）在 Tono-Pen 眼压计和 GAT、非接触眼压计（NCT）和 GAT、动态轮廓眼压计（DCT）和 Goldmann 压平眼压计（GAT）之间的读数。确定眼压读数与可能的混杂因素之间的相关性。
本观察性横断面研究纳入了 62 名健康受试者。由同一位眼科医生测量所有眼压和眼脉冲幅度（OPA）；由一位经验丰富的技师测量平均角膜曲率（MK）、中央角膜厚度（CCT）和晶状体厚度（LT）。
逐步多元回归分析表明，GAT（P=0.017）和 DCT（P=0.002）读数与 MK 呈正相关；GAT、NCT 和 Tono-Pen 读数与 CCT 呈正相关（P<0.05）；NCT（P=0.035）和 DCT（P=0.016）读数与 LT 呈负相关；GAT（P=0.006）和 Tono-Pen（P=0.009）读数与 OPA 呈正相关。
K、CCT、LT 和 OPA 是眼压测量的混杂因素。
