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Automated Perimetry
Carbonic Anhydrase Inhibitors
Intra Ocular Lens Power Calculation and Optic Biometry...
Visual Field Defects in Glaucoma
Visual Field Defect and Retinal Nerve Fiber Layer Defect in a Case of Optic Nerve Head Drusen...
Current Minimal Invasive Angle Procedures Without Implants for the Treatment of Glaucoma...
Intra Ocular Lens Power Calculation and Optic Biometry...
Automated Perimetry
Carbonic Anhydrase Inhibitors
Visual Field Defect and Retinal Nerve Fiber Layer Defect in a Case of Optic Nerve Head Drusen...
Glokom-Katarakt 2019 , Vol 14 , Num 2
Turkish Abstract Abstract PDF Similar Articles Mail to Author
The Comparison of Central Cornea Thickness in Primary Open Angle Glaucoma with Optical Biometry and Ultrasonic Pachymetry
Özkan KOCAMIŞ1, Medine GÜNDOĞAN2
1Yard. Doç. Dr., Ahi Evran Üniversitesi Tıp Fakültesi, Göz ABD, Kırşehir, Türkiye
2Uz. Dr., Ahi Evran Üniversitesi Tıp Fakültesi, Göz ABD, Kırşehir, Türkiye
Purpose: We aimed to compare central corneal thickness (CCT) measurements in eyes with primary open-angle glaucoma (POAG) with optical biometry ( Haag-Streit Lenstar LS 900 Optical Biometer,Switzerland) and ultrasonic pachymetry (USP) devices.

Materials and Methods: We included 35 eyes of 35 patients with POAG in this prospective observational study. CCT was measured with the optic biometric pachymetry and an USP device (Pac-Scan 300p, Sonomed Escalon, NY, USA). While the first observer conducted the measurement with both the optic biometric pachymetry and USP devices, the second observer only used the optic biometric pachymetry device. Spearman correlation analysis was used in the correlation analysis.

Results: Central corneal thickness with the optic biometric pachymetry was 526.6±39.6 ?m for the first observer and 527.7±40.6 ?m for the second observer. The central corneal thickness was 541.9±43.6 ?m with USP. Statistically signifi cant lower measurements were found with the optic biometric pachymetry device than with USP (p<0.001). A statistically signifi cant and strong correlation was present between the observers\' measurements of the central cornea thickness with the optic biometric pachymetry (r=0.995, p<0.001). A statistically signifi cant and strong correlation was also present between the central corneal thickness measurements of the first observer using the two devices (r=0.943, p<0.001).

Conclusion: Optic biometric pachymetry provides lower central corneal thickness measurements than USP in primary open-angle glaucoma. Although there is a strong correlation between the two devices, this difference may be important in intraocular pressure measurements. Keywords : Optic biometric pachymetry, ultrasonic pachymetry, central corneal thickness, primary open angle glaucoma, intraocular pressure

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