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목적 : To compare the predictive ability of intraocular pressure (IOP) parameters measured by dynamic contour tonometry (DCT) and goldmann applanation tonometry (GAT) for glaucoma progression in eyes with a history of laser refractive surgery (LRS).
방법 : Totally, 98eyes of 54 primary open angle glaucoma patients who had a history of LRS were enrolled. During the follow-up periods, IOP was always measured by GAT and DCT. Baseline IOP, Mean IOP, Peak IOP, IOP fluctuation, and IOP reduction measured by each tonometry were used as IOP parameters. In addition, corrected IOP parameters using central corneal thickness and mean keratometry were also used for the analysis. Clustered logistic regression was used to find correlated variable for glaucoma progression. Area under the curves (AUC) of correlated variables were compared by Delong’s method.
결과 : Among included eyes, 22 eyes showed glaucoma progression. Mean DCT (OR:1.36, p=0.024), Peak DCT (OR:1.19, p=0.02), and pattern standard deviation (OR=1.10, P=0.016) were significant risk factors for glaucoma progression. AUC of mean DCT and mean GAT for the prediction of glaucoma progression (0.63 and 0.514, respectively) showed significant difference (p=0.01). There was also significant difference between AUC of peak DCT and peak GAT (0.646 and 0.503, respectively. p=0.009). However, corrected IOP did not show AUC values exceeding DCT.
결론 : In glaucoma eyes with a history of LRS, measurement of IOP using DCT was more effective in predicting glaucoma progression than using GAT. This result suggests the need for a specific method of measuring IOP in these patients
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