Purpose. To compare the intraocular pressure (IOP) before and after Laser In Situ Keratomileusis (LASIK), measured by Diaton,\nPerkins, and noncontact air pulse tonometers. Methods. Fifty-seven patients with a mean age of 34.88 were scheduled for myopia\nLASIK treatment. Spherical equivalent refraction (SER), corneal curvature (K), and central corneal thickness (CCT) and superior\ncorneal thickness (SCT) were obtained before and after LASIK surgery. IOP values before and after surgery were measured using\nDiaton, Perkins, and noncontact air pulse tonometers. Results. The IOP values before and after LASIK surgery using Perkins\ntonometer and air tonometers were statistically significant (P < 0.05). However, no significant differences were found (P > 0.05)\nfor IOP values measured with Diaton tonometer. CCT decreases significantly after surgery (P < 0.05) but no statistical differences\nwere found in SCT (P = 0.08). Correlations between pre- and postsurgery were found for all tonometers used, with P = 0.001 and\nr = 0.434 for the air pulse tonometer, P = 0.008 and r = 0.355 for Perkins, and P < 0.001 and r = 0.637 for Diaton. Conclusion.\nTranspalpebral tonometry may be useful for measuring postsurgery IOP aftermyopic LASIK ablation because this technique is not\ninfluenced by the treatment.
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