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- Title
Clinical Results after Implantation of a Spherical Aberration-Free Intraocular Lens: Effect of Contrast Sensitivity and Wavefront Aberration – A Clinical Comparative Study.
- Authors
Choi, Jin-A; Kim, Chan-Young; Na, Kyung-Sun; Park, Shin-Hae; Joo, Choun-Ki
- Abstract
Purpose:To compare the clinical results of the spherical aberration-free Akreos AO™ (Bausch & Lomb) with the Akreos Adapt™ (Bausch & Lomb), the parent model of spherical optic design. Methods:Fifty patients (100 eyes) were randomly assigned to bilaterally receive Akreos AO or Akreos Adapt intraocular lenses (IOLs) after phacoemulsification. At 6 months postoperatively, best-corrected contrast sensitivities were determined at 3, 4.8, 7.5, 12 and 19 cycles per degree using a Visual Capacity Analyzer (L2 Informatique) under mesopic (5 cd/m2) and photopic (100 cd/m2) conditions with undilated pupils. Wavefront analysis of total aberration was performed with the WaveScan WaveFront System (Advanced Medical Optics VISX). Results:Postoperative contrast sensitivities were not statistically different under mesopic and photopic conditions. On the other hand, fourth-order spherical aberration was lower in the AO group than the Adapt group with only a marginal difference (p = 0.048). Other higher-order aberrations such as coma and trefoil were not significantly different between the two groups (p = 0.657, 0.614). The questionnaire on subjective visual quality in terms of glare disability, distant vision and night driving did not reveal an improved visual function in the AO group. Conclusion:The spherical aberration-free Akreos AO IOL did not show improved visual quality compared with its spherical counterpart.Copyright © 2009 S. Karger AG, Basel
- Subjects
INTRAOCULAR lenses; CONTRAST sensitivity (Vision); COMPARATIVE studies; PHACOEMULSIFICATION; VISUAL acuity; GLARE; ULTRASONICS in ophthalmology
- Publication
Ophthalmologica, 2009, Vol 223, Issue 5, p320
- ISSN
0030-3755
- Publication type
Article
- DOI
10.1159/000219857