نتایج جستجو برای: phakic intraocular lenses

تعداد نتایج: 31376  

Journal: :Digital journal of ophthalmology : DJO 2015
Ambika Hoguet Louis R Pasquale

This review article summarizes four key case reports published in the field of glaucoma in the year 2014. The first article describes successful early drainage of delayed suprachoroidal hemorrhage in 7 patients who underwent glaucoma surgery. The second describes the use of a corneal patch graft to repair leaking or hypotonous blebs in patients who underwent glaucoma filtration surgery. The thi...

2012
Huanqing Guo Alexander V. Goncharov Chris Dainty

We hypothesize that an intraocular lens (IOL) with higher-order aspheric surfaces customized for an individual eye provides improved retinal image quality, despite the misalignments that accompany cataract surgery. To test this hypothesis, ray-tracing eye models were used to investigate 10 designs of mono-focal single lens IOLs with rotationally symmetric spherical, aspheric, and customized sur...

Journal: :American journal of ophthalmology 1983
M Nakazawa K Ohtsuki

We measured apparent accommodation in 42 pseudophakic eyes (34 patients) after implantation of posterior chamber intraocular lenses. The mean apparent accommodation was 2.03 +/- 1.03 diopters. The mean accommodative power of 16 phakic eyes used as controls was 2.91 +/- 1.29 diopters. The diameter of the pupil appeared to be the most important factor in apparent accommodation--the smaller the pu...

Journal: :Journal of cataract and refractive surgery 2004
Marjolijn C Bartels Gabriel van Rij Gregorius P M Luyten

We present a patient with marginal corneal degeneration and corneal astigmatism of more than 10.0 diopters (D). A toric phakic intraocular lens (IOL) of 7.0 D cylindrical power was implanted in both eyes to correct the high astigmatism. An uncorrected visual acuity of 20/40 was achieved in both eyes, and the best corrected visual acuity improved by 4 Snellen lines to 20/20 in both eyes. Refract...

Journal: :Ophthalmology 2005
Mana Tehrani H Burkhard Dick

OBJECTIVE To evaluate efficiency, predictability, stability, complications, and patient satisfaction after implantation of a foldable iris-fixated phakic intraocular lens (PIOL) for the correction of myopia. DESIGN Prospective, nonrandomized, comparative (self-controlled) trial. PARTICIPANTS Forty-one eyes of 22 myopic patients aged 18 to 56 years (mean, 36 years) with average sphere of -8....

2017
Lin-Yan Zheng Shuang-Qian Zhu Yan-Feng Su Hu-Yong Zou Qin-Mei Wang A-Yong Yu

BACKGROUND To compare the outcomes of a toric phakic intraocular lens (PIOL) and a spherical PIOL combined with astigmatic keratotomy (AK) for the correction of high myopic astigmatism. METHODS This study enrolled patients with high myopic astigmatism, including 30 eyes (22 patients) that received a toric PIOL implantation (TICL group), and 32 eyes (24 patients) that received combined AK and ...

Journal: :Journal of cataract and refractive surgery 2004
Georges Baikoff Eric Lutun Jay Wei Caroline Ferraz

Three phakic intraocular lens (IOL) models were implanted in 3 different patients. With the usual slitlamp examination, it was not possible to determine whether there was contact between the IOLs and the natural crystalline lens. Using the anterior chamber optical coherence tomography (AC OCT) scanner, direct contact between the natural crystalline lens and the 3 phakic IOLs was revealed. A dyn...

Journal: :Journal of cataract and refractive surgery 2008
Nayyirih G Tahzib Scott M MacRae Geunyoung Yoon Tos T J M Berendschot Fred A G J Eggink Fred Hendrikse Rudy M M A Nuijts

PURPOSE To evaluate higher-order aberrations (HOAs) after implantation of Artiflex phakic intraocular lenses (pIOLs). SETTING Department of Ophthalmology, Academic Hospital Maastricht, Maastricht, The Netherlands. METHODS This retrospective comparative case series comprised 27 eyes (14 patients) that had Artiflex pIOL implantation and 22 eyes (13 patients) that had Artisan pIOL implantation...

Journal: :Deutsches Arzteblatt international 2008
Thomas Kohnen Anja Strenger Oliver K Klaproth

INTRODUCTION Refractive ophthalmic surgery allows refractive errors to be corrected permanently in a safe, effective, and reliable way with few complications. METHODS Selective literature review with special reference to the guidelines of the German Commission for Refractive Surgery. RESULTS With a total of almost 18 million treatments performed to date, laser in-situ keratomileusis (LASIK)...

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