Umberto Lorenzi

ORCID: 0000-0001-7977-8728
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About
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Research Areas
  • Intraocular Surgery and Lenses
  • Glaucoma and retinal disorders
  • Retinal and Macular Surgery
  • Retinal Diseases and Treatments
  • Traumatic Ocular and Foreign Body Injuries
  • Vascular Malformations Diagnosis and Treatment
  • Corneal surgery and disorders
  • Retinal and Optic Conditions
  • Cerebral Venous Sinus Thrombosis
  • Intracranial Aneurysms: Treatment and Complications
  • Corneal Surgery and Treatments
  • Ophthalmology and Visual Impairment Studies
  • Pain Mechanisms and Treatments
  • Pituitary Gland Disorders and Treatments
  • Anorectal Disease Treatments and Outcomes
  • Ocular Oncology and Treatments
  • Neurological Complications and Syndromes
  • Ocular Diseases and Behçet’s Syndrome
  • Intraoperative Neuromonitoring and Anesthetic Effects

Hôpital Charles-Nicolle
2020-2025

Hôpital Charles-Nicolle
2021

Université de Rouen Normandie
2020

Centre Hospitalier Universitaire de Rouen
2020

Centre Hospitalier Universitaire Pointe-à-Pitre
2019

University of Turin
2011-2018

AGIR à dom
2017

PURPOSE: We report a novel technique which enables to cut any kind of foldable lens and extract it using capsulorhexis forceps 1.2 mm single-use slit angled knife. METHODS: The consists in the mantain stabilize IOL anterior chamber, while one hand holds that way, second introduces knife through paracenthesis cuts on 3/4 his diameter. is then extracted or twe pieces. RESULTS: Since march 2021 we performed 82 eyes 79 patients. Learning curve was very fast easily managed by two experimented...

10.1097/iae.0000000000004398 article EN Retina 2025-01-07

Abstract Background To compare the anatomical and functional outcomes of inverted internal limiting membrane (ILM) flap technique complete ILM removal in treatment large stage 4 macular hole (MH) > 400 μm to evaluate reconstructive changes foveal microstructure using spectral-domain optical coherence tomography. Methods This is a retrospective, consecutive, nonrandomized comparative study patients affected by idiopathic, myopic or traumatic MH (minimum diameter μm) treated with 25-gauge...

10.1186/s12886-019-1294-8 article EN cc-by BMC Ophthalmology 2020-01-06

Lacking a standard technique, the surgical management of aphakia without capsular support remains to be optimized. The goal this study is analyze results for Carlevale FIL-SSF intraocular lens and propose recommendations.The P1.5 Collective performed retrospective analysis, with minimum follow-up 6 months, records 72 implantations lens, specifically designed sutureless scleral fixation in ciliary sulcus.The most common indication was exchange posterior chamber (70.8%). surgery lasted mean...

10.1016/j.jfo.2021.05.002 article EN cc-by-nc-nd Journal Français d Ophtalmologie 2021-06-17

<b><i>Purpose:</i></b> To evaluate short-term intraocular pressure (IOP) changes after phacoemulsification in glaucoma and normal patients the effect of oral acetazolamide (Diamox) to control IOP these patients. <b><i>Methods:</i></b> 120 undergoing cataract surgery were included this prospective multicenter study involving 6 University Eye Clinics: 60 with well-controlled primary open-angle (POAG) controls. Half participants received...

10.1159/000337838 article EN Ophthalmologica 2012-01-01

Background: Despite the high closure rate of large macular hole (LMH) after surgery, visual recovery is often worse than expected. Microperimetric biofeedback can improve function in pathologies. We evaluated efficacy on successful inverted flap technique for LMH. Methods: In this prospective comparative study, 26 patients LMH surgical were enrolled. The whole sample was equally divided into two groups. Group 1 (trained), underwent a double cycle microperimetric biofeedback, using structured...

10.3390/jcm9020556 article EN Journal of Clinical Medicine 2020-02-18

Abstract Purpose To evaluate the surgical management, outcomes and prognostic factors of full thickness macular holes without residual internal limiting membrane (NO-ILM FTMHs). Methods We performed a multicenter, retrospective study 116 NO-ILM FTMHs. Human amniotic (hAM) plug, autologous ILM free flap transplantation (AILMT), retinal graft (ART) were in 58, 48, 10 patients, respectively. Data collected before up to 12 months after surgery. The primary hole closure final best-corrected...

10.1007/s00417-022-05739-x article EN cc-by Graefe s Archive for Clinical and Experimental Ophthalmology 2022-07-06

To evaluate the different mechanisms of retinal detachment recurrence after retinectomy for rhegmatogenous (RD) complicated by proliferative vitreoretinopathy (PVR) and to study its outcome prognosis.Retrospective, multicenter conducted between January 2009 November 2016. Retrospective review 56 patients with recurrent RD (RRD) a first relaxing retinectomy.The secondary attachment rate was 58.9% (33/56 cases). The various RRD were mainly related PVR (52/56 cases: 93%). This anterior in 10...

10.1097/iae.0000000000002592 article EN Retina 2019-07-31

Terson syndrome is defined as intraocular hemorrhage associated with intracranial bleeding. This can occur in the event of or elevated pressure. To our knowledge, it has never been chronic myeloid leukemia. A 45-year-old woman suffering from leukemia was referred to clinic after We followed this patient for a year, performing visual acuity assessment, fundus examination, color retinography, and A-scan B-scan ultrasonography. At presentation, her best-corrected on right 20/63 left 20/320. In...

10.2147/opth.s52548 article EN cc-by-nc Clinical ophthalmology 2014-04-01

Purpose: The purpose of this study was to report the functional and anatomical outcomes a prospective resulting from repeated dexamethasone intravitreal implants in patients with uveitic refractory macular edema. Methods: Twelve eyes 9 intermediate posterior noninfectious inflammatory uveitis complicated edema were regularly reviewed after implant. Patients examined at baseline, 30, 90, 135, 180 days best-corrected visual acuity (BCVA), complete slit-lamp examination, intraocular pressure...

10.2147/opth.s141153 article EN cc-by-nc Clinical ophthalmology 2017-11-01

Background: Diabetic papillopathy is a complication of diabetes. It presents with edema, uni or bilateral and vascular alteration the anterior optic nerve. Often this observed in patients severe diabetic retinopathy, but rarely isolated form. Some authors believe that papillitis particular form non-arteritic ischemic neuropathy (NAION). But there important evidence confers an inflammatory component to papillopathy. We report work rare case acute developed patient after adding insulin oral...

10.1177/1120672120984383 article EN European Journal of Ophthalmology 2020-12-22

Purpose: The authors describe an original technique for treating multiple subretinal perfluorocarbon liquid (PFCL) bubbles complicating previous surgery rhegmatogenous retinal detachment. Methods: To facilitate the induction of macular redetachment and peripheral displacement PFCL bubbles, we performed injection filtered air in addition to balanced salt solution. In this setting, action vitreous cavity, combined with globe manipulation, allowed bubbles' full aspiration. Results: A...

10.1097/icb.0000000000001023 article EN Retinal Cases & Brief Reports 2020-07-28

Purpose: To report a case of large full thickness macular hole (MH) as an uncommon complication idiopathic retinal vasoproliferative tumor (RPVT) and the successful closure full-thickness MH by inverted internal limiting membrane Flap technique. Methods: A report. 40-year-old woman was referred for progressive profound visual loss on right eye. The fundus examination showed presence RPVT surrounding numerous exudates in inferior temporal peripheral retina. In addition, spectral domain...

10.1097/icb.0000000000001015 article EN Retinal Cases & Brief Reports 2020-07-08

Lorenzi, Umberto MD, FEBO; Parrat, Eric MD; Grondin, Christelle La Spina, Carlo FEBOEditor(s): Williams, George A. Author Information

10.1097/iae.0000000000001712 article EN Retina 2017-06-29

Purpose comparison between two anesthetic techniques on the ability to reduce pain during panretinal photocoagulation (PRP) treatment. Methods Observational retrospective single center study. Medical charts of patients who underwent PRP for proliferative diabetic retinopathy were revised. Patients included if they had first eye treated with oxybuprocaine hydrochloride drops, and in case severe pain, fellow received topical anesthesia combination 2% subconjunctival lidocaine. The groups...

10.1177/11206721231199206 article EN European Journal of Ophthalmology 2023-08-31

Background. The underlying mechanisms of papilledema associated with intracranial hypertension remain unclear. A case bilateral papillary edema in a patient chronic idiopathic who was asymptomatic during her two pregnancies is reported. Case Presentation. 19-year-old Caucasian female, third month pregnancy, complained difficulties close reading. patient’s visual acuity 20/20 on the Snellen chart and improved 0.50 D correction both eyes. Near vision slit lamp examinations revealed normal...

10.1155/2023/6688445 article EN cc-by Case Reports in Ophthalmological Medicine 2023-07-11
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