Light distortion and ocular scattering with glistening and aberration-free pseudophakic IOL: a pilot study
نویسندگان
چکیده
METHODS: Eighteen consecutive patients (mean age: 70 ± 7 years, range: 60 to 86 years) with cataract were bilaterally implanted with an aspheric monofocal IOL (enVistaTM, Bausch & Lomb) by the same experienced surgeon. Examinations were performed 5 to 8 months after surgery. Objective ocular scattering index (OSI) for a 4 mm pupil, as well as other parameters related to the quality of vision through the ocular-IOL optical system were evaluated with the HD Analyzer® (Visiometrics, Spain) under non-dilated conditions. Light disturbances were evaluated with a prototype device (Light Distortion Analyzer [LDA], University of Minho, Portugal).
منابع مشابه
A new intraocular lens design to reduce spherical aberration of pseudophakic eyes.
PURPOSE The aim of this study was to design and evaluate in the laboratory a new intraocular lens (IOL) intended to provide superior ocular optical quality by reducing spherical aberration. METHODS Corneal topography measurements were performed on 71 cataract patients using an Orbscan I. The measured corneal surface shapes were used to determine the wavefront aberration of each cornea. A mode...
متن کاملQuels bénéfices visuels peut-on attendre d’un implant sans aberration sphérique dans la chirurgie de la cataracte ?
Purpose: To assess the quality of vision in pseudophakic patients with aspheric intraocular lens (IOL) without spherical aberration compared to patients with spherical IOL. Methods: Twenty-four patients (48 eyes) undergoing cataract surgery were randomly divided into two groups: 12 patients received an aspheric IOL in both eyes and 12 received spherical IOLs. The integrity of ocular functions w...
متن کاملOptical aberrations of intraocular lenses measured in vivo and in vitro.
Corneal and ocular aberrations were measured in a group of eyes before and after cataract surgery with spherical intraocular lens (IOL) implantation by use of well-tested techniques developed in our laboratory. By subtraction of corneal from total aberration maps, we also estimated the optical quality of the intraocular lens in vivo. We found that aberrations in pseudophakic eyes are not signif...
متن کاملTheoretical comparison of aberration-correcting customized and aspheric intraocular lenses.
PURPOSE To assess the performance and optical limitations of standard, aspheric, and wavefront-customized intraocular lenses (IOLs) using clinically verified pseudophakic eye models. METHODS White light pseudophakic eye models were constructed from physical measurements performed on 46 individual cataract patients and subsequently verified using the clinically measured contrast sensitivity fu...
متن کاملWavefront aberrations in eyes with Acrysof monofocal intraocular lenses.
PURPOSE To characterize and measure the ocular aberrations in eyes implanted with monofocal intraocular lenses (IOLs) and to study any correlation between postoperative aberrations and surgical factors. METHODS A Tscherning aberroscope was used to measure the wavefront aberrations of 62 eyes that had undergone phacoemulsification with the implantation of foldable monofocal Acrysof MA60BM IOLs...
متن کامل