Intraocular pressure after myopic laser refractive surgery measured with a new Goldmann convex prism: correlations with GAT and ORA

BMC Ophthalmology

Bachar Kudsieh¹  Ricardo P. Casaroli-Marano²  María Iglesias³  Jeroni Nadal³  Andrea Laiseca³  Rafael Barraquer⁴  Cristina Santos⁵ 

[1] Department of Ophthalmology, Hospital Universitario Puerta De Hierro, 28222, Madrid, Spain;Department of Surgery, School of Medicine and Hospital Clinic de Barcelona, University of Barcelona (UB), 08036, Barcelona, Spain;Instituto Universitario Barraquer, Barraquer Ophthalmology Centre, Laforja 88, 08012, Barcelona, Spain;Instituto Universitario Barraquer, Barraquer Ophthalmology Centre, Laforja 88, 08012, Barcelona, Spain;International University of Catalunya (UIC), 08017, Barcelona, Spain;Unitat Antropologia Biològica, Department Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona (UAB), 08193, Barcelona, Spain;

关键词: Tonometry;    Corneal biomechanics;    Intraocular pressure;    Glaucoma;    Myopia;    LASIK;    PRK;   

DOI  :  10.1186/s12886-022-02309-x

来源: Springer

【 摘 要 】

BackgroundThe purpose of this study is to describe measurements using a newly developed modified Goldmann convex tonometer (CT) 1 year after myopic laser refractive surgery. Intraocular pressure (IOP) measurements were compared with IOP values obtained by Goldmann applanation tonometer (GAT), and Ocular Response Analyzer (ORA).MethodsProspective double-masked study performed on thirty eyes of thirty patients that underwent laser in situ keratomileusis (LASIK; n = 19) or photorefractive keratectomy (PRK; n = 11). IOP was measured before and 3 and 12 months after surgery. Intraclass correlation coefficient (ICC) and Bland-Altman plot were calculated to assess the agreement between GAT, CT, IOPg (Goldmann-correlated IOP) and IOPcc (corneal-compensated IOP) from ORA.ResultsTwelve months after LASIK, IOP measured with CT showed the best correlation with IOP measured with GAT before surgery (GATpre) (ICC = 0.886, 95% CI: 0.703–0.956) (15.60 ± 3.27 vs 15.80 ± 3.22; p < 0.000). However, a moderate correlation was found for IOP measured with IOPcc and CT 12 months after LASIK (ICC = 0.568, 95% CI: − 0.185 – 0.843) (15.80 ± 3.22 vs 12.87 ± 2.77; p < 0.004). Twelve months after PRK, CT showed a weak correlation (ICC = − 0.266, 95% CI: − 3.896 – 0.663), compared to GATpre (17.30 ± 3.47 vs 16.01 ± 1.45; p < 0.642), as well as poor correlation (ICC = 0.256, 95% CI: − 0.332 – 0.719) with IOPcc (17.30 ± 3.47 vs 13.38 ± 1.65; p < 0.182).ConclusionsTwelve months after LASIK, IOP measured with CT strongly correlated with GAT before surgery and could therefore provide an alternative method for measuring IOP after this surgery. More studies regarding this new convex prism are needed to assess its accuracy.

【 授权许可】

CC BY