Rebound Tonometry over Soft Contact Lenses

Goldmann applanation tonometry (GAT) is named as a gold standard for intraocular pressure (IOP) measurement. To assess the accuracy of intraocular pressure (IOP) measurements using rebound tonometry over hydrogel and silicone hydrogel contact lenses (CLs) of different powers. This study included 117...

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Veröffentlicht in:Acta informatica medica 2020-09, Vol.28 (3), p.185-189
Hauptverfasser: Krolo, Iva, Mihaljevic, Boze, Kasumovic, Aida, Bagatin, Freja, Ravlic, Maja Malenica, Herman, Jelena Skunca
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container_title Acta informatica medica
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Mihaljevic, Boze
Kasumovic, Aida
Bagatin, Freja
Ravlic, Maja Malenica
Herman, Jelena Skunca
description Goldmann applanation tonometry (GAT) is named as a gold standard for intraocular pressure (IOP) measurement. To assess the accuracy of intraocular pressure (IOP) measurements using rebound tonometry over hydrogel and silicone hydrogel contact lenses (CLs) of different powers. This study included 117 eyes of 61 patients (12 male, 49 female), all habitual wearers of hydrogel and silicone hydrogel CLs, and none previously diagnosed with glaucoma, ocular hypertension or anterior surface disease. Five IOP measurements were taken over each eye using a rebound tonometer (Icare): with soft CLs in situ and then repeated without CLs. Lens power ranged from -9.50 to +10.00 spherical diopters and to a maximum of -0.75 cylinder diopters. A significant positive correlation was found between IOP measurements with and without CLs. The difference between IOP measurements with (mean 20.74±5.19 mmHg) and without (mean 18.79±4.36 mmHg) CLs was found to be 1.95 mmHg (P
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To assess the accuracy of intraocular pressure (IOP) measurements using rebound tonometry over hydrogel and silicone hydrogel contact lenses (CLs) of different powers. This study included 117 eyes of 61 patients (12 male, 49 female), all habitual wearers of hydrogel and silicone hydrogel CLs, and none previously diagnosed with glaucoma, ocular hypertension or anterior surface disease. Five IOP measurements were taken over each eye using a rebound tonometer (Icare): with soft CLs in situ and then repeated without CLs. Lens power ranged from -9.50 to +10.00 spherical diopters and to a maximum of -0.75 cylinder diopters. A significant positive correlation was found between IOP measurements with and without CLs. The difference between IOP measurements with (mean 20.74±5.19 mmHg) and without (mean 18.79±4.36 mmHg) CLs was found to be 1.95 mmHg (P &lt;0.01). Statistical analysis was performed using the paired t-test and a correlation coefficient was calculated (r = 0.59; P &lt;0.001). We have observed that increase in central corneal thickness (CCT) correlates positively with increase of measurement error of rebound tonometry (r = 0.43; P &lt;0.001). We have shown good reliability of IOP measurements over CLs of different materials and thickness profiles while using rebound tonometer which makes it a feasible and accurate method for clinical purposes.</description><identifier>ISSN: 0353-8109</identifier><identifier>EISSN: 1986-5988</identifier><identifier>DOI: 10.5455/aim.2020.28.185-189</identifier><identifier>PMID: 33417647</identifier><language>eng</language><publisher>Bosnia and Herzegovina: Academy of Medical Sciences of Bosnia and Herzegovina</publisher><subject>Contact lenses ; Contact pressure ; Correlation analysis ; Eye (anatomy) ; Glaucoma ; Hydrogels ; Hypertension ; Intraocular pressure ; Original Paper ; Silicone resins</subject><ispartof>Acta informatica medica, 2020-09, Vol.28 (3), p.185-189</ispartof><rights>2020 Iva Krolo, Boze Mihaljevic, Aida Kasumovic, Freja Bagatin, Maja Malenica Ravlic, Jelena Skunca Herman.</rights><rights>2020. 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subjects Contact lenses
Contact pressure
Correlation analysis
Eye (anatomy)
Glaucoma
Hydrogels
Hypertension
Intraocular pressure
Original Paper
Silicone resins
title Rebound Tonometry over Soft Contact Lenses
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