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مقاله
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Abstract
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Title:
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Comparison of IOP Measurement Using Different Measurement Tools in 3 Groups: Normal, Keratoconic, and Post-Keratoplasty
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Author(s):
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Mahmoud Jabbarvand, Hesam Hashemian, Sasan Moghimi, Hamid Riazi Esfahani, Mehdi Khodaparast
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Presentation Type:
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Oral
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Subject:
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Cornea and Anterior Segment
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Others:
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Presenting Author:
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Name:
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Hesam Hashemian
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Affiliation :(optional)
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Ophthalmology research center, Farabi Eye Hospital, Tehran university of medical sciences
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E mail:
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shhlucky@yahoo.com
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Phone:
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Mobile:
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09126805097
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Purpose:
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To determine the agreement between IOP measurement with different methods in 3 groups.
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Methods:
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The study was a prospective, cross-sectional study; with 340 eyes divided into 3 groups (Group A: 112 normal eyes, Group B: 115 keratoconic eyes, and Group C: 113 post-keratoplasty eyes.) IOP was measured using Airpuff tonometer, Diatone, Ocular Response Analyzer [both ORA-IOPg (Goldmann corrected) and ORA-IOPcc (corneal thickness corrected)] , Goldmann applanation tonometer (GAT), and Tonopen. Central corneal thickness (CCT) was assessed using ultrasound pachymeter.
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Results:
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Mean age was 36.2±11.0, 37.8±9.3, and 39.4±12.1 years in groups A, B, and C respectively. Mean CCT was 508±37, 457±33, and 570±140 micron in groups A, B, and C respectively. In group A and B, there was no significant difference in IOP measured by GAT, ORA-IOPg, Diatone, Airpuff tonometer, and Tonopen; while ORA-IOPcc was significantly higher than others. In group C, GAT readings were significantly lower than others; while there was no significant difference between Diatone, Airpuff tonometer, ORA-IOPg and ORA-IOPcc. Tonopen readings were significantly lower than other tools except GAT.
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Conclusion:
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Although Different IOP measurement tools have acceptable agreement with each other; there are significant differences between different methods specially in post-keratoplasty measurements.
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Attachment:
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