Publications by authors named "Pierre Fournie"

Neuro-ophthalmological changes have been reported after prolonged exposure to microgravity; however, the pathophysiology remains unclear. Furthermore, several countermeasures have been suggested to counteract the side effects of microgravity. The objectives of the present study were twofold: (1) to assess the neuro-ophthalmological impact of 60 days of head-down bed rest (HDBR) and (2) to determine the potential effects of an antioxidant cocktail.

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Purpose: Eye rubbing is considered to play a significant role in the progression of keratoconus and of corneal ectasia following refractive surgery. To our knowledge, no tool performs an objective quantitative evaluation of eye rubbing using a device that is familiar to typical patients. We introduce here an innovative solution for objectively quantifying and preventing eye rubbing.

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Article Synopsis
  • Optic Atrophy (OA) can lead to microcystic macular edema (MME) in the retinal inner nuclear layer, with a study investigating its prevalence in non-glaucomatous OA patients over five years.
  • Out of 643 eyes examined, 15% developed MME, with varying prevalence depending on the underlying cause of OA, except for toxic/nutritional factors.
  • MME was linked to thinning of the ganglion cell and nerve fiber layers, reduced visual acuity, and INL thickening, but its presence does not help in diagnosing OA conditions.
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Dupilumab has demonstrated efficacy in the treatment of atopic dermatitis. However, a subset of patients experiences ocular adverse events (OAEs), including conjunctivitis and dry eye syndrome, the pathological mechanisms of which are still unknown. In a bicentric study, we used DNA microarray analysis to compare the transcriptome of conjunctival cells of patients with atopic dermatitis collected by impression cytology before (M0) and 4 months after (M4) initiating dupilumab treatment.

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Rhegmatogenous retinal detachment (RRD) is a sight-threatening condition with rising global incidence. Identifying factors contributing to seasonal variations in RRD would allow a better understanding of RRD pathophysiology. We therefore performed a retrospective case series study investigating the relationship between RRD occurrence and meteorological factors throughout metropolitan France (the METEO-POC study), particularly the mean temperature over the preceding 10-day period (T-1).

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Article Synopsis
  • There is a very rare condition where people have early-onset ataxia (which means difficulty with movement) and miosis (which means their pupils are very small).
  • So far, only one family has been identified with this condition, and they found a specific change in a gene called ITPR1 that seems to cause it.
  • Researchers found another person with a similar change in the same gene, which helps to confirm that this gene is linked to the ataxia and miosis syndrome, making it easier for doctors to recognize and diagnose in the future.
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Introduction: The aim of this work is to evaluate the real-world outcomes of the reinforced treat-and-extend (RTE) protocol for the treatment of exudative age-related macular degeneration with intravitreal injections of aflibercept or ranibizumab (anti-vascular endothelial growth factor therapies).

Methods: This was a retrospective review of patients from two tertiary ophthalmology centers in France initiating the RTE protocol between February 2018 and June 2021. The primary outcome was change in best-corrected visual acuity (BCVA) after 24 months.

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Purpose: Corneal crosslinking (CXL) is the standard treatment of progressive keratoconus (KC). We evaluated the safety and 10-year outcomes of conventional "epithelial-off" CXL for progressive KC for the first time in a cohort in France.

Methods: We conducted a retrospective review of patients undergoing conventional CXL (Dresden protocol) in our tertiary ophthalmology department from 2006 to 2011 with 10-year follow-up.

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After exposure to microgravity, astronauts undergo microgravity-induced thoraco-cephalic fluid shift, which may lead to ocular changes called "spaceflight associated neuro-ocular syndrome" (SANS). The onset of SANS may be multifactorial, including a potential elevation in intracranial pressure. Moreover, little is known about the impact of spaceflight on SANS in women due to the fact that fewer female astronauts have spent time in long-term missions.

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Purpose: The purpose of this study was to describe the surgical management of bilateral giant full-thickness macular hole with sudden onset two months after cataract surgery in a patient with Alport syndrome.

Methods: This was an observational, single-case report.

Results: A 54-year-old woman with a history of Alport syndrome presented with severe bilateral visual loss two months after cataract surgery.

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Introduction: Keratoconus has a significant impact on patients' quality of life (QoL), from diagnosis to the advanced stages of the disease. The aim of this research was to identify domains of QoL affected by this disease and its treatment.

Methods: Phone interviews were conducted using a semi-structured interview guide, with patients with keratoconus stratified according to their current treatment.

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Introduction: Descemet membrane endothelial keratoplasty (DMEK) is the main treatment for Fuchs' dystrophy (FECD). The outcomes are excellent, but the final visual recovery may vary from patient to patient with sometimes no obvious reason of such a spread.

Methods: We conducted a clinical prospective multicentric study to identify the predictive factors for the visual result 1 year after surgery.

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Article Synopsis
  • The study reviews the management and outcomes of necrotizing herpetic retinitis (NHR) to propose a first-line treatment algorithm, based on a retrospective analysis of 41 patients treated between 2012 and 2021.
  • The majority of patients diagnosed with NHR were categorized into acute retinal necrosis (ARN), progressive outer retinal necrosis (PORN), and CMV retinitis, with a significant portion being immunocompromised.
  • Findings indicate that complications were high, with 83% of eyes affected, and poor visual outcomes were linked to certain factors, emphasizing the need for prompt evaluation of immune status and timely antiviral treatment.
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Keratoconus (KC) is a multifactorial progressive ectatic disorder characterized by local thinning of the cornea, leading to decreased visual acuity due to irregular astigmatism and opacities. Despite the evolution of advanced imaging methods, the exact etiology of KC remains unknown. Our aim was to investigate the involvement of corneal epithelium in the pathophysiology of the disease.

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Purpose: To evaluate risk factors associated with keratoconus in a monocentric cross-sectional case-control study.

Methods: This observational study occurred from June 2019 to February 2021 in a university hospital (France). The case group consisted of 195 patients with keratoconus in at least one eye who were followed up by a corneal specialist.

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Ocular immunotherapy-related adverse events (IRAEs), although rare, can be sight-threatening. Our objective was to analyze ocular IRAEs diagnosed in France from the marketing of immune checkpoint inhibitors (ICPIs) until June 2021 and to review the literature. We collected the cases of 28 patients (36 ocular IRAEs), occurring after an average of 17 weeks (±19).

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Introduction: We performed a prospective, single-center, cohort study in order to evaluate the effects of vitrectomy with epiretinal membrane (ERM) peel on optical quality in patients with primary ERM.

Methods: Thirty patients treated for primary ERM by vitrectomy with ERM peel were included from our tertiary university hospital ophthalmology department. The main study outcome was a variation in optical quality parameters measured using the HD Analyzer™ between preoperative and 2-month postoperative evaluations in operated eyes.

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Among the new biological therapies for atopic diseases, dupilumab is a fully human monoclonal antibody directed against IL-4Rα, the common chain of interleukin-4 and interleukin-13 receptors. Dupilumab showed clinical improvements in patients with atopic dermatitis, asthma, and chronic rhinosinusitis and is currently under development for other indications. While dupilumab is considered to be well tolerated, a number of recent publications have reported various adverse events.

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Purpose: To assess a new polynomial regression formula integrating the refractive prediction error of the first-operated eye to improve the intraocular lens power calculation of the second eye in cataract surgery.

Setting: Centre Hospitalier Universitaire, Toulouse, France.

Design: Retrospective multicentric dataset study.

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Heads-up three-dimensional (3D) surgical visualization systems allow ophthalmic surgeons to replace surgical microscope eyepieces with high-resolution stereoscopic cameras transmitting an image to a screen. We investigated the effectiveness and safety of the heads-up NGENUITY 3D Visualization System in a retrospective evaluation of 241 consecutive vitreoretinal surgeries performed by the same surgeon using conventional microscopy (CM group) over a 1-year period versus the NGENUITY System (3D group) over a consecutive 1-year period. We included for study vitreoretinal surgeries for treatment of retinal detachment (RD) (98 surgeries), macular hole (MH) (48 surgeries), or epiretinal membrane (ERM) (95 surgeries).

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Purpose: To evaluate the efficacy and safety of transepithelial corneal cross-linking (CXL) with supplemental oxygen.

Methods: This was a prospective, non-comparative, pilot cohort study conducted at the National Reference Center for Keratoconus (Toulouse, France) on patients with progressive keratoconus. Transepithelial, pulsed, accelerated CXL was performed in an oxygen-rich atmosphere.

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Purpose: To assess the keratoconus (KC) prevalence among first-degree relatives of affected subjects.

Methods: We performed large epidemiological, prospective, and observational cohort, which took place in the French KC National Reference Centre, in Bordeaux. We studied data from 94 unrelated patients with KC and at least 2 first-degree relatives assessable.

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Bone morphogenetic protein 1 (BMP-1) is an important metalloproteinase that synchronizes growth factor activation with extracellular matrix assembly during morphogenesis and tissue repair. The mechanisms by which BMP-1 exerts these effects are highly context dependent. Because BMP-1 overexpression induces marked phenotypic changes in two human cell lines (HT1080 and 293-EBNA cells), we investigated how BMP-1 simultaneously affects cell-matrix interactions and growth factor activity in these cells.

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Purpose: Ocular cicatricial pemphigoid (OCP) is a rare systemic autoimmune disease and a potentially blinding subepithelial blistering disorder. The purpose of this study was to describe the clinical spectrum of the disease and to assess the efficacy and safety of immunosuppressive agents in a cohort of patients with OCP.

Methods: We conducted a monocentric retrospective cross-sectional cohort study of all unselected consecutive patients diagnosed with progressive OCP.

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Purpose: To compare the outcomes of transepithelial photorefractive intrastromal corneal crosslinking (CXL) and photorefractive keratectomy (PRK) in eyes with low myopia.

Setting: Purpan Hospital, Toulouse, France.

Design: Prospective case series.

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