Tiago Ferreira

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We describe a case of corneal ectasia in a patient with previous radial keratotomy (RK). The uncorrected distance visual acuity (UDVA) was 20/400, the corrected visual acuity (CDVA) 20/50, and the spherical equivalent (SE) -5.125 diopters (D). Corneal topography revealed inferior corneal ectasia with corneal astigmatism of 9.2 D. Six months after corneal(More)
PURPOSE To evaluate the visual and wavefront outcomes after cataract surgery with implantation of a diffractive multifocal toric intraocular lens (IOL). SETTING Two clinical centers, Lisbon, Portugal. DESIGN Case series. METHODS This study comprised patients with cataract and corneal astigmatism between 0.75 diopter (D) and 2.50 D who had(More)
PURPOSE To compare the visual outcomes and wavefront analyses of patients who underwent cataract surgery with the implantation of a Tecnis toric intraocular lens (IOL) (Abbott Medical Optics) with those patients who received an Acrysof IQ toric IOL (Alcon Laboratories Inc). METHODS The study included 40 eyes from 26 patients with regular corneal(More)
PURPOSE To evaluate the distance between the endothelial surface of the cornea to the anterior edge of an Artiflex® phakic intraocular lens (IOL) implant to improve the safety profile of this implant. METHODS This is a retrospective clinical case series of 45 patients who had Artiflex phakic IOL implantation (Artiflex p-IOL) with a follow-up period of 3(More)
PURPOSE To compare the visual outcomes after cataract surgery with bilateral implantation of 1 of 2 diffractive trifocal intraocular lenses (IOLs). SETTING Two clinical centers, Lisbon, Portugal. DESIGN Prospective comparative case series. METHODS Phacoemulsification with bilateral implantation of a Finevision Micro F IOL (Group 1) or an AT Lisa tri(More)
Given increasing applications of recombinant adenoviruses for gene therapy and vaccination, there is a need for highly robust and fast purification platforms for their large scale manufacture. Traditional chromatographic methods using resins as matrices have several limitations such as high-pressure drops and slow processing rates due to pore diffusion and(More)
BACKGROUND Bariatric surgery has been proposed as the most effective treatment for patients with type 2 diabetes mellitus (T2DM) and body mass index (BMI) above 35 kg/m(2). The purpose of our study was to access remission rate and improvement of metabolic control of T2DM after gastric bypass. METHODS A prospective study was carried out on 94 diabetic(More)
To date there are no licensed systemic or topical treatments in Europe or the USA for adenovirus infections. In the present paper, we evaluate the effect of a polyphenol-based grape extract (NE) obtained from Portuguese white-winemaking by-products, and Resveratrol in pure form, on adenovirus type 5 infection. For this purpose, recombinant adenovirus(More)
PURPOSE To evaluate the clinical outcome in eyes with significant corneal astigmatism after cataract surgery with implantation of a new diffractive multifocal toric intraocular lens (IOL). METHODS Prospective, non-randomised multicentre clinical study including 57 eyes of 38 consecutive patients with an age between 37 and 84 years that underwent cataract(More)