Abstract
Background. To evaluate differences between Goldmann Applanation Tonometry (GAT) and Dynamic Controur Tonometry (DCT) following trabeculectomy. Methods. Thirty eight glaucomatous eyes with a history of trabeculectomy (Trabeculectomy group, TG), 20 eyes without a history of trabeculectomy but with a history of latanoprost use (Latanoprost group, LG), and 19 nonglaucomatous eyes (Control group, CG) were included. GAT-IOP, DCT-IOP, the difference between them (dIOP), the central corneal thickness (CCT), the axial length (AL), and the depth of the anterior chamber (ACD) were measured. Results. dIOP was significantly higher in TG (5.19 mmHg) than in LG (4.01 mmHg) and CG (1.98 mmHg). Correlations between AL and dIOP were statistically significant in both TG and LG but not in CG whereas correlations between dIOP and other clinical parameters examined were statistically not significant in all groups. Conclusions. The significantly higher dIOP in TG implies that the bio-mechanical properties of the ocular walls are altered following trabeculectomy.
Highlights
Differences in the measurements of the intraocular pressure (IOP) by different tonometry methods, such as Goldmann Applanation Tonometry (GAT) and Dynamic Contour Tonometry (DCT), have been previously detected in glaucomatous eyes under treatment with latanoprost and have been used as indicators of the biomechanical behaviour of the eye [1, 2]
This study aims at evaluating the difference between GAT and Dynamic Controur Tonometry (DCT) in glaucomatous eyes treated with trabeculectomy, in glaucomatous eyes under topical treatment with latanoprost as well as in a control group of nonglaucomatous eyes and at correlating results with clinical information
This study examined dIOP in glaucomatous eyes in which target IOP had been reached following 1 or 2 trabeculectomies, in glaucomatous eyes successfully treated with latanoprost as monotherapy, as well as in a control group of non-glaucomatous eyes
Summary
Differences in the measurements of the intraocular pressure (IOP) by different tonometry methods, such as Goldmann Applanation Tonometry (GAT) and Dynamic Contour Tonometry (DCT), have been previously detected in glaucomatous eyes under treatment with latanoprost and have been used as indicators of the biomechanical behaviour of the eye [1, 2]. This study aims at evaluating the difference between GAT and DCT (dIOP) in glaucomatous eyes treated with trabeculectomy, in glaucomatous eyes under topical treatment with latanoprost as well as in a control group of nonglaucomatous eyes and at correlating results with clinical information. To evaluate differences between Goldmann Applanation Tonometry (GAT) and Dynamic Controur Tonometry (DCT) following trabeculectomy. The significantly higher dIOP in TG implies that the biomechanical properties of the ocular walls are altered following trabeculectomy
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