CENTRAL CORNEAL THICKNESS MEASUREMENTS USING GALILEI, ORBSCAN II, AND ULTRASONIC PACHYMETRY

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KARIMIAN F.; FEIZI S.; DOOZANDE A.; YASERI M.; KIANI H.; ANSARI S.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: BINA Year:2011 | Volume:16 | Issue:2 (63) Page(s): 113-119

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Title

CENTRAL CORNEAL THICKNESS MEASUREMENTS USING GALILEI, ORBSCAN II, AND ULTRASONIC PACHYMETRY

Author(s)

Keywords

CENTRAL CORNEAL THICKNESSQ3

PACHYMETRYQ3

GALILEIQ3

ORBSCANQ3

Abstract

Purpose: To compare CENTRAL CORNEAL THICKNESS (CCT) measured by GALILEI and ORBSCAN II with that by ultrasonic (UIS) PACHYMETRY in unoperated eyes. Methods: CCT was measured in 184 unoperated eyes of 92 healthy retractive surgery candidates using GALILEI, ORBSCAN II, and U/S PACHYMETRY. Considered as a benchmark, measurements by U /S PACHYMETRY were compared to those obtained by the other two devices. Agreement between the three instruments was assessed using regression analysis, mountain plots, and Bland-Altman plots. Results: Mean CCT was 544.4±33.4 mm, 546.7±37.9 mm, and 555.8±29.6 mm, as measured by ultrasonic PACHYMETRY, ORBSCAN II, and GALILEI systems, respectively. Mean differences between readings measured by U /S PACHYMETRY and those measured by ORBSCAN II (acoustic coefficient 0.96) and GALILEI were 2.3 mm and 10.2 mm, respectively. Despite this discrepancy, GALILEI had a better agreement with U /S PACHYMETRY as compared to ORBSCAN II (correlation coefficient of 0.947 vs 0.817). Considering acoustic coefficient of 0.98 for GALILEI, its CCT readings were more similar to U /S PACHYMETRY. Conclusion: GALILEI is well correlated with U/S PACHYMETRY for measurement of CCT in normal eyes and by applying an acoustic coefficient of 0.98 for GALILEI, its records can be considered equivalent to U/S PACHYMETRY. Further investigations are required to address its accuracy in abnormally thin corneas such as corneal ectasia and after refractive surgeries.

Cites

COMPARISON OF CORNEAL THICKNESS IN CANDIDATES FOR PHOTOREFRACTIVE KERATECTOMY (PRK) USING THREE METHODS, ORBSCAN II, PENTACAM, AND ULTRASOUND

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APA: Copy

KARIMIAN, F., FEIZI, S., DOOZANDE, A., YASERI, M., KIANI, H., & ANSARI, S.. (2011). CENTRAL CORNEAL THICKNESS MEASUREMENTS USING GALILEI, ORBSCAN II, AND ULTRASONIC PACHYMETRY. BINA, 16(2 (63)), 113-119. SID. https://sid.ir/paper/42527/en

Vancouver: Copy

KARIMIAN F., FEIZI S., DOOZANDE A., YASERI M., KIANI H., ANSARI S.. CENTRAL CORNEAL THICKNESS MEASUREMENTS USING GALILEI, ORBSCAN II, AND ULTRASONIC PACHYMETRY. BINA[Internet]. 2011;16(2 (63)):113-119. Available from: https://sid.ir/paper/42527/en

IEEE: Copy

F. KARIMIAN, S. FEIZI, A. DOOZANDE, M. YASERI, H. KIANI, and S. ANSARI, “CENTRAL CORNEAL THICKNESS MEASUREMENTS USING GALILEI, ORBSCAN II, AND ULTRASONIC PACHYMETRY,” BINA, vol. 16, no. 2 (63), pp. 113–119, 2011, [Online]. Available: https://sid.ir/paper/42527/en

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