Correlation of central corneal thickness and Goldmann applanation tonometry among Filipinos

Authors

  • Ma. Margarita L. Lat-Luna, MD Department of Ophthalmology and Visual Sciences University of the Philippines Philippine General Hospital Manila, Philippines Author
  • Paul I. Guerrero, MD Department of Ophthalmology and Visual Sciences University of the Philippines Philippine General Hospital Manila, Philippines Author
  • John Vincent Policarpio D. Flores, MD, MS Epi Department of Ophthalmology and Visual Sciences University of the Philippines Philippine General Hospital Manila, Philippines Author

Keywords:

Applanation tonometry, Central corneal thickness, Glaucoma, Intraocular pressure

Abstract

Objective: To determine the distribution of central corneal thickness (CCT) among Filipinos and to correlate CCT with intraocular pressure (IOP).

Methods: A prospective cross-sectional study was performed among Filipino patients consulting at the General Ophthalmology Clinic of the Philippine General Hospital. They underwent a comprehensive eye examination. CCT obtained by ultrasonic pachymetry and IOP by Goldmann applanation tonometry were correlated using linear regression analysis. Factors affecting CCT measurements were analyzed by ANOVA.

Results: Two hundred twenty two eyes of 112 patients were included in the study. CCT ranged from 451.0 m to 653.6 m with a mean of 531.5 m ±33.8 m. There was a significant linear correlation between CCT and IOP (r = 0.63). The IOP was noted to rise by 4.3 mm Hg/100 m CCT.

Conclusion: The CCT among Filipinos is normally distributed and is comparable to the distribution obtained by metaanalysis of worldwide data. The study also found a direct correlation between CCT and IOP among Filipinos.

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Published

2004-06-01

Issue

Vol. 29 No. 2

Section

Original Article

License

Copyright (c) 2004 Philippine Journal of Ophthalmology

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.