STRATUS OPTICAL COHERENCE TOMOGRAPHY MANUALStratus OCT is not optimal for CCT measurement because of the important limitations of using manual measurements, but it can be used if other measurement devices designed for the purpose are not available. However, the devices are not interchangeable. Both devices used for CCT measurement are easily applied, noninvasive, and effective. Corneal thicknesses that have been calculated with Pentacam were lower than the values obtained with Stratus OCT. Conclusions:Ĭorneal thickness measurements differ depending on the device used. In Bland-Altman analysis, there was a high consistency between measurements obtained with either Pentacam or Stratus OCT devices. 1 7 it is an extension of a technique called low-coherence interferometry, which was initially applied to ophthalmology for in vivo measurements of eye axial length. Although the average difference between the devices was 21.65 ± 8.59 μm ( P < 0.0001), the measurements obtained with both devices were significantly correlated ( r = 0.969, P < 0.0001). optical coherence tomography (oct) has advanced considerably since it was first applied to the eye. The average CCT value obtained with Pentacam was 546.11 ± 34.15 μm and that obtained with Stratus OCT was 567.76 ± 35.02 μm. The relationship between the CCT values obtained with these 2 devices was examined with a Pearson correlation analysis, a paired t test, and a Bland-Altman analysis. Before optical coherence tomography (OCT), the standard method for assessing macular thickness in the clinic was stereoscopic biomicroscopy, a subjective process dependent on observer skill, patient cooperation, degree of pupillary dilation, clarity of ocular media, and characteristics of the retinal swelling. Significant differences (P ConclusionsMeasurements of RNFL thickness, optic disc topography, and central foveal thickness significantly differ between OCT. Methods:ĬCT measurements of 80 eyes belonging to 40 male patients (mean age: 24.48 ± 6.01 years) were evaluated with the Pentacam and the Stratus OCT. In this study, we aimed to compare the CCT measurements obtained using the Scheimpflug system ( Pentacam Oculus, Inc) with a retinal optical coherence tomography device (Stratus OCT Carl Zeiss Meditec, Inc) to examine healthy corneas. Measurement of central corneal thickness (CCT) plays an essential role in the diagnosis and treatment of many ocular diseases.
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