[Deep anterior lamellar keratoplasty by big-bubble technique].

Purpose: To evaluate the efficacy, safety, and complications related to the deep anterior lamellar keratoplasty (DALK) using the big-bubble technique.

Methods: A prospective study of patients submitted to DALK using the big-bubble technique was conducted. After the procedure, uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), spherical equivalent (SE), corneal topography, endothelial cell density, and intraoperative and postoperative complications were evaluated.

Visual Performance of Tecnis ZM900 Diffractive Multifocal IOL after 2500 Implants: A 3-Year Followup.

Purpose. To evaluate visual performance for near, intermediate, and distant vision; complaints of photic phenomena, and patient satisfaction with the new diffractive multifocal IOL used in eyes which underwent phacoemulsification. Methods.

Multifocal intraocular lens optic anteriorization capture to correct residual refractive error.

Purpose: To evaluate the efficacy and safety of capturing the intraocular lens (IOL) optic through the anterior capsulorhexis opening in eyes with multifocal IOLs and a residual refractive error.

Setting: Hospital Oftalmológico de Brasília, Brasília, Brazil.

Methods: Eyes with previous cataract surgery and Tecnis ZM900 multifocal IOL implantation were prospectively analyzed.

Spherical aberration and contrast sensitivity in eyes implanted with aspheric and spherical intraocular lenses: a comparative study.

Purpose: To determine whether implantation of an intraocular lens (IOL) with a modified anterior aspheric surface results in reduced spherical aberration and improved contrast sensitivity after cataract surgery.

Design: Prospective, comparative, interventional case series.

Methods: In an intraindividual randomized prospective study of 25 patients with bilateral cataract, an IOL with a modified anterior surface (Tecnis Z9001; Advanced Medical Optics, Santa Ana, California, USA; group 1) was compared with biconvex lens with spherical surfaces (ClariFlex; Advanced Medical Optics; group 2).

Primary piggyback implantation using the Tecnis ZM900 multifocal intraocular lens: case series.

Purpose: To assess the postoperative outcomes of primary piggyback implantation using the Tecnis ZM900 multifocal intraocular lens (IOL) (Advanced Medical Optics).

Setting: Hospital Oftalmológico de Brasília, Brasília, Brazil.

Methods: Patients who had phacoemulsification with primary piggyback IOL implantation were analyzed prospectively.

Ocular aberrations and contrast sensitivity after cataract surgery with AcrySof IQ intraocular lens implantation Clinical comparative study.

Purpose: To determine whether implantation of an intraocular lens (IOL) with a modified posterior aspherical surface (AcrySof IQ, Alcon Surgical Laboratories) results in reduced ocular aberrations (spherical aberration) and improved contrast sensitivity after cataract surgery.

Setting: Brasilia Ophthalmologic Hospital, Brasilia, and Sao Geraldo Eye Hospital, Federal University of Minas Gerais, Belo Horizonte, Brazil.

Methods: In an intraindividual randomized prospective study of 25 patients with bilateral cataract, an IOL with a modified posterior surface (AcrySof IQ) was compared with a biconvex IOL with spherical surfaces (AcrySof Natural, Alcon).

[Preliminary results of Artisan phakic intraocular lens implantation to correct myopia].

Purpose: To observe the preliminary results based on the efficacy, stability and safety of Artisan anterior chamber intra-ocular lens for the correction of myopia in the first 6 months.

Methods: A retrospective study of 18 patients (34 eyes) that received the implantation of Artisan anterior chamber intraocular lens for the correction of myopia was conducted. Best visual preoperative acuity, best visual postoperative acuity, dynamic preoperative and postoperative refraction, loss and improvement of lines of vision and complications were evaluated.

Primary piggyback implantation using the ReSTOR intraocular lens: case series.

Purpose: To assess the postoperative outcomes of piggyback implantation using the AcrySof ReSTOR intraocular lens (IOL) (model SA60D3, Alcon Surgical Laboratories).

Setting: Hospital Oftalmológico de Brasília, Brasília, Brazil.

Methods: Thirteen eyes of 7 patients who had phacoemulsification with piggyback IOL implantation were analyzed prospectively.

[Performance evaluation of NeoSoniX technology in cataract surgery].

Purpose: The techniques and results of cataract surgery have improved dramatically with technological advancements. One of the reasons for this improvement would be the reduced use of ultrasound with the new phacoemulsification devices. The objective of this study is to confirm the theoretical advantage of the NeoSoniX handpiece.

Ferrara intracorneal ring implantation and cataract surgery for the correction of pellucid marginal corneal degeneration.

We report a case of Ferrara intracorneal ring (Mediphacos) implantation and cataract surgery for the correction of pellucid marginal corneal degeneration. Preoperatively, the patient's uncorrected visual acuity (UCVA) was 0.05 in the right eye and 0.