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ORIGINAL ARTICLE
Year : 2010  |  Volume : 58  |  Issue : 5  |  Page : 385-388

Comparison of central corneal thickness measurements with the Galilei dual Scheimpflug analyzer and ultrasound pachymetry


Dada Laser Eye Institute, Pune, India

Correspondence Address:
Jeevan S Ladi
Dada Laser Eye Institute, A Wing, Gulmohar Apartments, Above State Bank of India, East Street, Camp, Pune-411 001
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0301-4738.67045

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Purpose: To compare corneal pachymetry assessment by the Galilei dual Scheimpflug analyzer with that done by ultrasound (US) pachymetry. Materials and Methods: Forty six patients (92 eyes) were subjected to corneal pachymetry assessment by Galilei dual Scheimpflug analyzer and US. All the readings were taken by a single operator. Intraoperator repeatability for the Galilei was assessed by taking 10 readings in one eye each of 10 patients. To study the interoperator reproducibility for the Galilei, two observers took a single reading in both the eyes of 25 patients. Results: The mean central corneal thickness (CCT) measured by US was 541.83 ± 30.56 μm standard deviation (SD) and that measured by Galilei was 541.27 ± 30.07 μm (SD). There was no statistically significant difference between both the methods (P < 0.001). The coefficient of repeatability was 0.43% while the coefficient of reproducibility was 0.377% for the Galilei. Conclusion: Objective, noncontact measurement of the CCT with the Galilei dual Scheimpflug analyzer was convenient, had excellent intraoperator repeatability and interoperator reproducibility, and findings were similar to those obtained with standard US pachymetry.


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