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Paper Information

Journal:   BINA   WINTER 2011 , Volume 16 , Number 2 (63); Page(s) 113 To 119.
 
Paper: 

Central Corneal Thickness Measurements Using Galilei, Orbscan Ii, And Ultrasonic Pachymetry

 
 
Author(s):  Karimian F.*, Feizi S., Doozande A., Yaseri M., Kiani H., Ansari S.
 
* OPHTHALMIC RESEARCH CENTER, SHAHID BEHESHTI UNIVERSITY OF MEDICAL SCIENCES, TEHRAN, IRAN
 
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.
Keyword(s): CENTRAL CORNEAL THICKNESS, PACHYMETRY, GALILEI, ORBSCAN
 
 
 
References: 
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Citations: 
 
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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. https://www.sid.ir/en/journal/ViewPaper.aspx?id=191536



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. 2011 [cited 2022January17];16(2 (63)):113-119. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=191536



IEEE: 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, [online] 16(2 (63)), pp.113-119. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=191536.



 
 
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