Journal of Clinical and Experimental Ophthalmology
Open Access
ISSN: 2155-9570
ISSN: 2155-9570
Sborgia Carlo
Italy
Research Article
Intraocular Pressure Measurement after Photorefractive Keratectomy : Does Contact Area Matter?
Author(s): Vetrugno Michele, Maino Anna, Ferreri Paolo, Cardia Giuseppina, Trerotoli Paolo, Serio Gabriella and Sborgia CarloVetrugno Michele, Maino Anna, Ferreri Paolo, Cardia Giuseppina, Trerotoli Paolo, Serio Gabriella and Sborgia Carlo
Background: Refractive laser surgery induces substantial changes in corneal structure, causing inaccurate intraocular pressure (IOP) readings. Pascal dynamic contour tonometry (PDCT) and Icare rebound tonometer (RBT) are two novel devices that do not depend on applanation to measure IOP. Purpose of this prospective study was to compare PDCT and rebound tonometry versus Goldmann tonometry (GAT) in a group of patients who underwent photorefractive keratectomy (PRK). Methods: Central corneal thickness and IOP were measured in 54 eyes before and after PRK. All IOP measurements were taken by the same examiner, using PDCT, RBT and GAT in a randomised, masked fashion. Results: After excimer laser surgery, PDCT measurements were higher than GAT (p<0.0001) and RBT (p=0.0012). Multiple linear regression analysis indicated that si.. View More»
DOI:
10.4172/2155-9570.1000102