Ophthalmology in China

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Agreement of intraocular pressure measurements between Icare rebound home tonometer and Goldmann applanation tonometer

ZHANG Ting-ting1, MENG Jing-ya2, JIANG Jun-hong2, WU Hai-xia2, FENG Ke-mi2, HU Cheng2, LI Min2, XU Jing2, LIANG Yuan-bo2   

  1. 1. The First People's Hospital of Xiaoshan, Hangzhou 311201, China; 2. The Eye Hospital of Wenzhou Medical University, Wenzhou 325027, China
  • Received:2017-11-02 Online:2018-11-25 Published:2018-12-11
  • Contact: LIANG Yuan-bo, Email: yuanboliang@126.com E-mail:yuanboliang@126.com


Objective To assess the agreement of intraocular pressure (IOP) measurements between Icare rebound home tonometer (Icare Home) and Goldmann applanation tonometer (GAT). Design Prospective case series. Participants 52 patients (right eye) with primary open-angle glaucoma (POAG). Methods IOP measurements were performed with Icare Home and GAT respectively. Bland-Altman analysis was used for the consistency of the two methods, and linear regression analysis was used for the correlation of the IOP values between the two methods. Main Outcome Measures IOP. Results Bland-Altman analysis revealed mean differences (bias) between Icare Home and GAT of 1.10 mmHg, with 95% credibility interval of -3.10 to 5.40 mmHg. There was a positive linear correlation between the IOP readings of Icare Home and  GAT(r=0.789,P<0.001). Conclusion The IOP readings obtained by GAT and Icare Home were in close agreement with each other.

Key words: intraocular pressure, Icare rebound home tonometer, Goldmann applanation tonometer