Manufacturers of devices that measure corneal thickness (such as the corneal pachymeter) often supply clinicians with tables, which help to convert corneal thickness measurements into an "adjustment factor." This adjustment factor is applied to the measured IOP, in order to determine more closely the "true" IOP for a given eye.

Central corneal thickness (CCT) is among the strongest independent predictors for the development of primary open-angle glaucoma (POAG) in the Ocular Hypertension Treatment Study (OHTS)1 and the European Glaucoma Prevention Study (EGPS).2 The risk of developing POAG doubled for every 40 m decrease in CCT from the overall mean of 573.3 m in the ...

Integrating pachymetry, or corneal thickness measurement, into routine assessments significantly enhances diagnostic accuracy. Adjusting IOP measurements based on individual corneal …

Central Corneal Thickness會影響IOP測量是眾所皆知的事實 在門診遇到高眼壓病患，常需要得到IOP後還原「真實眼壓」 （理論上是「較接近真實」） 尤其當前Refractive Surgery風行，民眾對青光眼的認識愈來愈多

IOP correction table used for adjusting intraocular pressure based on central corneal thickness (CCT). In order to adjust the IOP, just apply the correction factor on the right column to the intraocular pressure obtained by your tonometer.

To investigate the correlation coefficients between intraocular pressure (IOP) before and after adjusting for central corneal thickness (CCT) and corneal biomechanical properties.

Central corneal thickness (CCT) is known to affect the accuracy of intraocular pressure (IOP) measurements by applanation tonometry. 1,2 A thicker cornea requires greater force to applanate and, conversely, a thinner cornea is more easily flattened.

Relationship between central corneal thickness (CCT) and intraocular pressure (IOP) for normal controls and ocular hypertensives. Plotted are CCT versus IOP for all eyes of children in both the normal control and ocular hypertensive groups (n 58 eyes).

The results of the Ocular Hypertension Treatment Study (OHTS) brought to the forefront the role of central corneal thickness (CCT) as a confounder of applanation tonometry, and established CCT as an independent predictive factor for the development of glaucoma.

A significant correlation was found between IOP and CCT after LASIK (r = 0.33; P < .002). The difference between the mean pre- and post-LASIK measurements of applanation IOP was 2.5 mm Hg, which was significant (P < .0001). The post-LASIK slope was 0.027 mm Hg/micron, or a decrease of 1.0 mm Hg per 37.8 microns reduction in CCT.