The impact of central corneal thickness on values of intraocular pressure measured using two methods: Goldmann applanation and dynamic contour tonometry in patients with open-angle glaucoma
Introduction Dynamic contour tonometry (DCT) is a contact, non-applanation method for measuring intraocular pressure (IOP). Objektive The study aimed at evaluating the impact of central corneal thickness (CCT) on values of IOP measured using two methods: Goldmann applanation tonometry (GAT) and DCT....
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| Language: | English |
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City Medical emergency department, Belgrade
2020-01-01
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| Series: | Halo 194 |
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| Online Access: | https://scindeks-clanci.ceon.rs/data/pdf/2334-6477/2020/2334-64772001007J.pdf |
| _version_ | 1818127748134076416 |
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| author | Jordanova Elena Hentova-Senćanić Paraskeva Marjanović Ivan Senćanić Ivan Stefanović Ivana Baralić Marko |
| author_facet | Jordanova Elena Hentova-Senćanić Paraskeva Marjanović Ivan Senćanić Ivan Stefanović Ivana Baralić Marko |
| author_sort | Jordanova Elena |
| collection | DOAJ |
| description | Introduction Dynamic contour tonometry (DCT) is a contact, non-applanation method for measuring intraocular pressure (IOP). Objektive The study aimed at evaluating the impact of central corneal thickness (CCT) on values of IOP measured using two methods: Goldmann applanation tonometry (GAT) and DCT. Methods The study included 150 patients (300 eyes) with the diagnosis of open-angle glaucoma (54 males) and mean age of 59.39± 13.12 years. IOP was measured using two methods: GAT and DCT. CCT was measured (ultrasound pachymetry). DCT introduced a new value - the ocular pulse amplitude (OPA). Results The IOP measured with the GAT was lower compared to the IOP measured with DCT (17.71±3.35mmHg vs 19.80± 3.67mmHg). There was a significant positive correlation between IOP measured with GAT and IOP measured with DCT (r= 0.867, p< 0.01). In all patients, there was a significant positive correlation between CCT and IOP measured with GAT (r=0.198, p< 0.01), as well as between CCT and IOP measured with DCT (r=0.180, p< 0.05). With every 10mm of change in CCT, the change of IOP measured with GAT was 0.3mmHg, while the average change of IOP measured with DCT was 0.4 mmHg. There was a significant positive correlation between CCT and OPA (r=0.204, p< 0.01). There was also a significant positive correlation between OPA and IOP measured with GAT (r= 0.393, p< 0.01) and between OPA and IOP measured with DCT (r= 0.452, p< 0.01). Conclusion IOP measured with GAT was lower than IOP measured with DCT. CCT had impact on both methods: GAT and DCT. The impact of CCT on IOP (DCT) was lower compared to the impact of CCT on IOP(GAT). |
| first_indexed | 2024-12-11T07:22:17Z |
| format | Article |
| id | doaj.art-7e42587887a8452aa273997fb0ea7b71 |
| institution | Directory Open Access Journal |
| issn | 2334-6477 2334-6477 |
| language | English |
| last_indexed | 2024-12-11T07:22:17Z |
| publishDate | 2020-01-01 |
| publisher | City Medical emergency department, Belgrade |
| record_format | Article |
| series | Halo 194 |
| spelling | doaj.art-7e42587887a8452aa273997fb0ea7b712022-12-22T01:16:03ZengCity Medical emergency department, BelgradeHalo 1942334-64772334-64772020-01-012617142334-64772001007JThe impact of central corneal thickness on values of intraocular pressure measured using two methods: Goldmann applanation and dynamic contour tonometry in patients with open-angle glaucomaJordanova Elena0Hentova-Senćanić Paraskeva1Marjanović Ivan2Senćanić Ivan3Stefanović Ivana4Baralić Marko5https://orcid.org/0000-0001-5585-9793KBC Zemun, Klinika za internu medicinu, Služba nefrologije, BeogradMedigroup-oftalmološka ambulanta Oftalmika, BeogradKCS, Klinika za očne bolesti, BeogradKBC Zvezdara, Klinika za očne bolesti, BeogradGradski zavod za hitnu medicinsku pomoć, BeogradKCS, Klinika za nefrologiju, BeogradIntroduction Dynamic contour tonometry (DCT) is a contact, non-applanation method for measuring intraocular pressure (IOP). Objektive The study aimed at evaluating the impact of central corneal thickness (CCT) on values of IOP measured using two methods: Goldmann applanation tonometry (GAT) and DCT. Methods The study included 150 patients (300 eyes) with the diagnosis of open-angle glaucoma (54 males) and mean age of 59.39± 13.12 years. IOP was measured using two methods: GAT and DCT. CCT was measured (ultrasound pachymetry). DCT introduced a new value - the ocular pulse amplitude (OPA). Results The IOP measured with the GAT was lower compared to the IOP measured with DCT (17.71±3.35mmHg vs 19.80± 3.67mmHg). There was a significant positive correlation between IOP measured with GAT and IOP measured with DCT (r= 0.867, p< 0.01). In all patients, there was a significant positive correlation between CCT and IOP measured with GAT (r=0.198, p< 0.01), as well as between CCT and IOP measured with DCT (r=0.180, p< 0.05). With every 10mm of change in CCT, the change of IOP measured with GAT was 0.3mmHg, while the average change of IOP measured with DCT was 0.4 mmHg. There was a significant positive correlation between CCT and OPA (r=0.204, p< 0.01). There was also a significant positive correlation between OPA and IOP measured with GAT (r= 0.393, p< 0.01) and between OPA and IOP measured with DCT (r= 0.452, p< 0.01). Conclusion IOP measured with GAT was lower than IOP measured with DCT. CCT had impact on both methods: GAT and DCT. The impact of CCT on IOP (DCT) was lower compared to the impact of CCT on IOP(GAT).https://scindeks-clanci.ceon.rs/data/pdf/2334-6477/2020/2334-64772001007J.pdfcentral corneal thicknessdynamic contour tonometryocular pulse amplitude |
| spellingShingle | Jordanova Elena Hentova-Senćanić Paraskeva Marjanović Ivan Senćanić Ivan Stefanović Ivana Baralić Marko The impact of central corneal thickness on values of intraocular pressure measured using two methods: Goldmann applanation and dynamic contour tonometry in patients with open-angle glaucoma Halo 194 central corneal thickness dynamic contour tonometry ocular pulse amplitude |
| title | The impact of central corneal thickness on values of intraocular pressure measured using two methods: Goldmann applanation and dynamic contour tonometry in patients with open-angle glaucoma |
| title_full | The impact of central corneal thickness on values of intraocular pressure measured using two methods: Goldmann applanation and dynamic contour tonometry in patients with open-angle glaucoma |
| title_fullStr | The impact of central corneal thickness on values of intraocular pressure measured using two methods: Goldmann applanation and dynamic contour tonometry in patients with open-angle glaucoma |
| title_full_unstemmed | The impact of central corneal thickness on values of intraocular pressure measured using two methods: Goldmann applanation and dynamic contour tonometry in patients with open-angle glaucoma |
| title_short | The impact of central corneal thickness on values of intraocular pressure measured using two methods: Goldmann applanation and dynamic contour tonometry in patients with open-angle glaucoma |
| title_sort | impact of central corneal thickness on values of intraocular pressure measured using two methods goldmann applanation and dynamic contour tonometry in patients with open angle glaucoma |
| topic | central corneal thickness dynamic contour tonometry ocular pulse amplitude |
| url | https://scindeks-clanci.ceon.rs/data/pdf/2334-6477/2020/2334-64772001007J.pdf |
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