550 results match your criteria: "Clinica Oftalmologica[Affiliation]"

Purpose: To communicate the results and complications in a series of 17 proximal lacrimal pathway obstructions (PLPO) operated by conjunctivo-rhinostomy (CR) with Métaireau tube implantation.

Methods: Retrospective descriptive study including 16 patients (17 PLPO) operated with CR between April 2010 and June 2017. Surgeries were performed under general anesthesia.

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Background: Optical coherence tomography (OCT) enables high-resolution imaging of ocular structures in health and disease. Choroid thickness (CT) is a key vascular retinal parameter that can be assessed by OCT and might be relevant in the evaluation of the vascular component of cognitive decline. We aimed to investigate CT changes in a large cohort of individuals cognitive unimpaired (CU), with mild cognitive impairment due to Alzheimer's (MCI-AD), mild cognitive impairment due to cerebrovascular disease (MCI-Va), Alzheimer's disease dementia (ADD), and vascular dementia (VaD).

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Purpose: To evaluate the clinical outcomes of a refractive multi-segmented continuous transitional focus intraocular lens (IOL), analyzing the potential influence of patient pupil dynamics on these outcomes.

Methods: Retrospective consecutive case series study enrolling 40 eyes (20 patients, 47-81 years) implanted with the Precizon Presbyopic IOL (Ophtec BV). The following clinical outcomes were analyzed during a mean follow-up of 12.

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Epithelial and stromal thickness profile and lens decentration in myopic orthokeratology.

J Optom

October 2023

Ocular Surface and Contact Lens Research Laboratory, Faculty of Optics and Optometry, Universidade de Santiago de Compostela, Spain; Clínica Oftalmológica Dr. Parafita, Ribeira, Spain.

Purpose: To study topographic epithelial and total corneal thickness changes in myopic subjects undergoing successful orthokeratology treatment in connection with the objective assessment of contact lens decentration.

Methods: A prospective-observational and non-randomized study in 32 Caucasian myopic eyes undergoing Ortho-k for 3 months. Total, epithelial, and stromal thicknesses were studied before and after Ortho-k treatment, using optical coherence tomography with anterior segment application software.

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Effectiveness of pars plana Ahmed® valve implantation in patients with refractory glaucoma.

Arch Soc Esp Oftalmol (Engl Ed)

October 2024

Grupo de investigación GIBACUS, Escuela de Medicina, Universidad del Sinú, Seccional Cartagena, Colombia; Universidad de Cartagena, Cartagena, Colombia.

Purpose: To evaluate the success rate and complications of the Ahmed FP7 valve implanted via Pars Plana in a group of vitrectomized patients with refractory glaucoma and anterior segment abnormalities from January 2018 to June 2023.

Methods: Quasi-experimental, prospective study. Eleven eyes with refractory glaucoma were included.

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Purpose: To quantify the long-term impact (24 months) on the visual results and activity of neovascular lesions of COVID-19 confinement in patients with nAMD in our population.

Methods: A retrospective observational study of patients with nAMD who attended consultation or were treated during the 3 months before confinement was carried out.

Results: 144 patients (168 eyes) with nAMD were included, 51 of them (35.

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Accuracy of intraocular lens power formulas in patients with average keratometry greater than 46 diopters.

Arch Soc Esp Oftalmol (Engl Ed)

October 2024

Adscrito del Servicio de Ecografía, Clínica Oftalmológica Salauno, Mexico City, Mexico.

Objective: To compare the accuracy of Kane, Barrett Universal II, Haigis, and SRK-T formulas in eyes with average keratometry greater than 46 diopters (D).

Methods: A retrospective analysis was conducted on 101 eyes of 101 patients with average keratometry greater than 46 D. The absolute prediction error (EA) was obtained for each patient one month after surgery.

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Purpose: The aim of this study was to evaluate the 3-year clinical results of Bowman layer with stromal inclusion (Bowman layer) transplantation using femtosecond laser for patients with advanced keratoconus.

Methods: This single-center retrospective study included 7 eyes of 7 patients diagnosed with progressive keratoconus who underwent Bowman layer transplantation with stromal inclusion between 2018 and 2020. Follow-up was carried out from the date of surgery until 36 months later.

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Vision-sparing self-inflicted ocular trauma in the setting of an incomplete history.

Can J Ophthalmol

October 2024

Clínica Oftalmológica, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brasil; University of North Carolina, Chapel Hill, NC. Electronic address:

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Introduction: Optical coherence tomography angiography (OCT-A) is a novel tool that allows the detection of retinal vascular changes. We investigated the association of macular vessel density (VD) in the superficial plexus assessed by OCT-A with measures of cerebrovascular pathology and atrophy quantified by brain magnetic resonance imaging (MRI) in non-demented individuals.

Methods: Clinical, demographical, OCT-A, and brain MRI data from non-demented research participants were included.

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Background: Several studies have reported a relationship between retinal thickness and dementia. Therefore, optical coherence tomography (OCT) has been proposed as an early diagnosis method for Alzheimer's disease (AD). In this study, we performed a genome-wide association study (GWAS) aimed at identifying genes associated with retinal nerve fiber layer (RNFL) and ganglion cell inner plexiform layer (GCIPL) thickness assessed by OCT and exploring the relationships between the spectrum of cognitive decline (including AD and non-AD cases) and retinal thickness.

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Purpose: In this study, we report a case of a young adult with X-linked juvenile retinoschisis (XLRS) with a rare pathogenic variant in the RS1 gene (c.522 + 2 T > A).

Methods: Ophthalmological evaluation, optical coherence tomography, full-field and multifocal electroretinograms and extensive genetic screening of genes related to visual loss were carried out in the participant.

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Purpose: To compare the refractive power profile, subjective depth-of-field and objective optical quality of two advanced monofocal intraocular lenses (IOLs) designed to improve intermediate vision.

Methods: This prospective study evaluated forty-six eyes of twenty-three patients, aged 54-68 years, binocularly implanted with two monofocal enhanced intraocular lenses (IOLs), the Tecnis Eyhance and the Physiol Isopure. Subjective through-focus visual acuity curves were obtained by placing trial lenses in front of the eye while wearing its best spherical-cylindrical correction for distance.

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Cancer therapy relies on new antitumoral drugs called immune checkpoint inhibitors (ICI), which produce long-lasting anti-tumor responses and lengthen survival, but cause autoimmune-type toxicity. The clinical characteristics induced by ICI are not well characterized to date and careful collection of clinical data is required to accurately define its safety profile. We conducted a literature search in the main clinical search engines to identify pharmacological ocular iatrogenic events of ICIs related to ocular motility.

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Purpose: The COVID-19 pandemic affected medical practice worldwide due to interventions to prevent spreading. Its effect on ophthalmology practices in Latin America has not yet been explored. We aimed to assess the perceptions about the pandemic from countries' ophthalmological national and subspecialty retina societies affiliated to the Pan-American Association of Ophthalmology (PAAO).

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Keratitis in patients with corneal foreign bodies: a cross-sectional study in Cali, Colombia.

Arq Bras Oftalmol

October 2023

Grupo de Investigación en Visión y Salud Ocular, Department of Ophthalmology, Universidad del Valle, Cali, Valle del Cauca, Colombia.

Purposes: To describe the clinical characteristics and factors associated with keratitis in patients with corneal foreign bodies in Colombia.

Methods: This cross-sectional study was based on a clinical records review of patients who had corneal foreign bodies and were admitted to the emergency department between June 2018 and June 2019 in Cali, Colombia. The primary outcome was the presence of keratitis diagnosed based on clinical criteria.

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Retinitis pigmentosa: Significant improvement with photobiomodulation.

Arch Soc Esp Oftalmol (Engl Ed)

October 2023

Unidad de Especialización, CLM Clínica Oftalmológica, Madrid, Spain.

We describe the case of a 38-year-old patient with retinitis pigmentosa. Diagnosed at the age of 20, she presented a progressive decrease in visual acuity and visual field, until she developed a shotgun barrel campimetry. After starting a photobiomodulation treatment of 9 sessions every other day, the patient reported improvement in visual acuity, night vision and quality of life.

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To build a representative 3D finite element model (FEM) for intracorneal ring segment (ICRS) implantation and to investigate localized optical changes induced by different ICRS geometries, a hyperelastic shell FEM was developed to compare the effect of symmetric and progressive asymmetric ICRS designs in a generic healthy and asymmetric keratoconic (KC) cornea. The resulting deformed geometry was assessed in terms of average curvature via a biconic fit, sagittal curvature (K), and optical aberrations via Zernike polynomials. The sagittal curvature map showed a locally restricted flattening interior to the ring (Kmax -11 to -25 dpt) and, in the KC cornea, an additional local steepening on the opposite half of the cornea (Kmax up to +1.

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Importance: Calcium channel blocker (CCB) use has been associated with an increased risk of glaucoma in exploratory studies.

Objective: To examine the association of systemic CCB use with glaucoma and related traits among UK Biobank participants.

Design, Setting, And Participants: This population-based cross-sectional study included UK Biobank participants with complete data (2006-2010) for analysis of glaucoma status, intraocular pressure (IOP), and optical coherence tomography (OCT)-derived inner retinal layer thicknesses.

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Ab-externo canaloplasty with and without suture in highly myopic eyes.

Int Ophthalmol

October 2023

Begitek Clínica Oftalmológica - Miranza, Pz. Teresa de Calcuta, 7, 20012, Donostia-San Sebastian, Spain.

Purpose: To evaluate the effectiveness of ab-externo canaloplasty using the iTrack canaloplasty microcatheter (Nova Eye Inc, Fremont, California), with or without suture, in glaucoma patients with high myopia.

Methods: This was a prospective, single-center, single-surgeon, observational study comparing the outcomes of ab-externo canaloplasty performed with a tensioning suture (suture group) and without a tensioning suture (no-suture group) in mild to severe glaucoma patients with high myopia. Twenty-three eyes received canaloplasty as a standalone procedure, 5 in combination with phacoemulsification.

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Three Colombian patients with chronic HTLV-1 infection and severe intermediate and/or posterior uveitis are described. In one case, retinal ablation was necessary due to extensive peripheral degeneration, while the other two were successfully managed with local anti-inflammatory therapy. Gradual resolution of ocular findings was observed in all three patients on follow-up.

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Background: Optical coherence tomography angiography (OCT-A) is a novel method in the dementia field that allows the detection of retinal vascular changes. The comparison of OCT-A measures with established Alzheimer's disease (AD)-related biomarkers is essential to validate the former as a marker of cerebrovascular impairment in the AD continuum. We aimed to investigate the association of macular vessel density (VD) in the superficial plexus quantified by OCT-A with the AT(N) classification based on cerebrospinal fluid (CSF) Aβ1-42, p181-tau and t-tau measurements in individuals with mild cognitive impairment (MCI).

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Comparative analysis of training programs for ophthalmology residents in Europe and the situation of ophthalmology training in Spain.

Arch Soc Esp Oftalmol (Engl Ed)

April 2023

Servicio de Oftalmología, Hospital Universitario Reina Sofía, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Universidad de Córdoba, Córdoba, Spain. Electronic address:

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