Visual and aberrometric outcomes in eyes with an angle-supported phakic intraocular lens

• Published in: Journal of cataract and refractive surgery Vol. 38; no. 9; pp. 1590 - 1594
• Main Authors: Toso, Antonio, MD, Morselli, Simonetta, MD
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Inc 01.09.2012; Elsevier
• Subjects: Aberrometry; Adult; Biological and medical sciences; Cell Count; Corneal Wavefront Aberration - physiopathology; Endothelium, Corneal - pathology; Female; Humans; Lens Implantation, Intraocular; Male; Medical sciences; Myopia, Degenerative - physiopathology; Myopia, Degenerative - surgery; Ophthalmology; Phakic Intraocular Lenses; Prospective Studies; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases; Surgery of the eye and orbit; Treatment Outcome; Visual Acuity - physiology; Young Adult; Eye; Prognosis; Treatment; Angle; Surgery; Evolution; Ophthalmology; Intraocular lens; Aberrometry
• ISSN: 0886-3350; 1873-4502
• DOI: 10.1016/j.jcrs.2012.04.038

Purpose To evaluate the postoperative changes in spherical aberration and the point-spread function (PSF) induced by the implantation of a new angle-supported phakic intraocular lens (pIOL). Setting Department of Ophthalmology, St. Bassiano Hospital, Bassano del Grappa, Italy. Design Prospective nonrandomized cohort study. Methods Eyes with high myopia had implantation of an Acrysof Cachet angle-supported pIOL. Preoperative and postoperative total spherical aberration and PSF were measured using a Luneau 80 Wave+ wavefront aberrometer (high-resolution Hartmann-Shack technology) at a fixed entrance pupil scan size of 5.0 mm under pharmacologic mydriasis. Preoperative and postoperative data were analyzed and compared using the Student t test. Results Thirty-five eyes of 18 patients were included in the statistical analysis. The Student t  test for paired data (95% confidence interval) showed a statistically significant difference between preoperative data and postoperative data. The mean preoperative total spherical aberration Z(4,0) was −0.001 μm ± 0.076 (SD) preoperatively and −0.13 ± 0.11 μm postoperatively ( P ≤.05). The mean PSF was 0.28 ± 0.15 preoperatively and 0.34 ± 0.16 postoperatively ( P <.05). Conclusion Implantation of the angle-supported pIOL in eyes with high myopia improved the quality of vision, inducing negative spherical aberration and increasing the PSF under mesopic conditions. Financial Disclosure Neither author has a financial or proprietary interest in any material or method mentioned.