Assessment of intraocular pressure through the ocular response analyzer before and after phacoemulsification surgery

作者：Valbon Bruno de Freitas^*; Silva Renata Siqueira; Jardim Daniela; Canedo Ana Laura; Palis Marcelo; Ambrosio Junior Renato

来源：Revista Brasileira de Oftalmologia, 2011, 70(1): 11-15.

• Biomechanics
• Intraocular pressure/physiology
• Cornea/physiology
• Phacoemulsification
• Diagnostic techniques, ophthalmological

Purpose: To evaluate the IOPg (gold standard, Goldmann correlated Intraocular pressure) and IOPcc (corneal compensated Intraocular pressure) in patients prior to and following phacoemulsification with intraocular lens implantation Methods: This is a prospective study. Thirty six consecutive patients (47 eyes) that underwent phacoemulsification surgery and intraocular lens implantation were enrolled. Full ophthalmologic clinical assessment including Ocular Response Analyzer (ORA, Reichert Ophthalmic Instruments, Buffalo, NY, USA) measurements were performed in all cases prior to surgery (Pre) and at follow-up time points: day 1 and day 30. Exclusion criteria were corneal disease or scars, previous ocular surgery and patients with glaucoma or glaucoma suspect or ocular hypertension. Student's paired t-test was utilized. Results: Mean and standard-deviation of ORA parameters were: IOPcc Pre was 15.6 (+/- 3.06), day 1 (D1) 15.5 (+/- 3.14) and day 30 (D30) 15.71 (+/- 4.34). The mean of IOPg was Pre 14.7 (+/- 3.0), day 1 (D1) 12.9 (+/- 3.1), and day 30 (D30) was 13.4 (+/- 3.7). Conclusion: The reduction in the IOPg was observed in the immediate postoperative underestimating the real intraocular pressure ocular. We agree that biomechanical properties may have greater impact on IOP measurements error than corneal tchikness or curvature.

• 出版日期2011-2