Publications by authors named "Marc J Mackert"

Purpose: To investigate long-term astigmatism after combined nonpenetrating glaucoma surgery (NPGS) and implantation of the first miniaturized suprachoroidal intraocular pressure (IOP) sensor EYEMATE-SC.

Setting: The study was conducted in 5 medical centers in 2 different countries.

Design: Retrospective multicenter clinical study.

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Purpose: To evaluate the performance and safety of minimally invasive glaucoma surgery with a supraciliary drainage device (MINIject; iSTAR Medical, Wavre, Belgium) in primary open-angle glaucoma (POAG) as a stand-alone procedure.

Design: Meta-analysis.

Methods: At 11 sites in Colombia, France, Germany, India, Panama, and Spain, 82 patients were treated in 3 prospective, multicenter, interventional, nonrandomized trials (STAR-I, II, III).

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Purpose: To compare two glaucoma drainage devices with subconjunctival filtration (MicroShunt and XEN) for open-angle glaucoma (OAG), with respect to effectiveness and safety.

Patients And Methods: This is a single center, retrospective, interventional study. In total, 106 eyes of 95 patients with OAG underwent surgery.

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This retrospective, single-center study evaluates the safety and efficacy of Preserflo MicroShunt (MicroShunt) implantations compared to trabeculectomies (TETs) in patients diagnosed with pseudoexfoliation glaucoma (PEXG). A total of 31 eyes from 28 patients received a MicroShunt implantation, and 29 eyes from 26 patients received a TET. Surgical success was defined as an intraocular pressure (IOP) between 5 mmHg and 17 mmHg at the end of the follow-up period, no need for surgical revisions or secondary glaucoma surgery, and no loss of light perception.

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Purpose: Measuring and controlling intraocular pressure (IOP) provide the foundation for glaucoma treatment. Self-tonometry has been proposed as an alternative to measure IOP throughout the entire day better. The novel EYEMATE-SC sensor (Implandata) is implanted in the suprachoroidal space to enable contactless continual IOP monitoring.

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Treatment of non-arteritic central retinal artery occlusion is still inconsistent. Therefore, the current study aimed to evaluate the efficacy of intravenous thrombolysis (IVT) and describe the prevalence of co-occurring ischemic brain lesions in patients with acute visual loss due to ischemia. We analysed 38 consecutive patients with acute visual loss between January 2015 and June 2020.

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Objective: To determine the association of arteriosclerosis, characterised by hyperechogenic intimal lesions (HIL), with wall thickness of the temporal and facial arteries in elderly patients with ocular arterial occlusions.

Methods: Patients suffering from non-arteritic ocular perfusion disorders were included. High-resolution compression sonography (18 MHz) images of the temporal arteries (frontal and parietal branch at the upper margin of the auricle) and facial arteries (at the crossing point of the artery over the mandible) were analysed for the presence of HIL (grade 0: absent; grade 1: moderate; grade 2: severe).

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Purpose: To compare the safety and efficacy of microshunt implantation augmented with Mitomycin C in patients with pseudoexfoliation glaucoma (PEXG) and primary open-angle glaucoma (POAG).

Methods: In this retrospective, single centre, interventional study, 46 eyes of 41 patients with PEXG (20 eyes) and POAG (26 eyes) underwent microshunt implantation. Definition of failure was an intraocular pressure (IOP) lower than 5 or higher than 17mmHg on two consecutive visits, an IOP reduction lower than 20% on two consecutive visits, the need of surgical revisions or reoperations or loss of light perception.

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Purpose: To compare different new-generation biometric formulas and ray-tracing for small-aperture intraocular lens (IOL) (IC-8; Acufocus, Inc) implantation in patients undergoing cataract and refractive lens exchange surgery with highly irregular corneas.

Methods: This monocenter study included 17 eyes of 17 patients with highly irregular corneas of different genesis. Biometric and topographic corneal data were assessed using the IOLMaster 700 (Carl Zeiss Meditec) and Pentacam (Oculus Optkigeräte GmbH).

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Purpose: To characterize the diagnostic yield of the spot sign in the diagnostic workup of acute arterial occlusions of the eye in elderly patients.

Methods: Clinical characteristics of consecutive patients aged ≥ 50 years with acute central retinal artery occlusion (CRAO), branch retinal artery occlusion (BRAO) or anterior ischemic optic neuropathy (AION) were recorded. Videos of transocular sonography were assessed for the presence of the spot sign by two blinded readers.

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Objectives: To validate cut-off values of quantitative high-resolution temporal artery compression sonography (TCS) for the diagnosis of cranial GCA (cGCA) in patients with acute arterial ocular occlusions and in an independent control group.

Methods: Consecutive patients who underwent TCS as part of the diagnostic workup of acute arterial ocular occlusions and controls not suffering from ocular ischaemia/systemic vasculitis were included. The diagnostic accuracy of the established TCS cut-off value of maximum temporal artery wall thickness (≥0.

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Ischemia of the retina in central retinal artery occlusion (CRAO) and of the optic nerve in ischemic optic neuropathy (ION) are common causes of irreversible vision loss in elderly patients and require a thorough diagnostic work-up. First and foremost, giant cell arteritis should be confirmed or ruled out. The further work-up of non-arteritic CRAO and non-arteritic ION (nAION) aims to determine the cardiovascular risk profile.

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A visual deterioration due to opacification of the intraocular lens was observed 3 weeks after uncomplicated combined minimally invasive glaucoma and cataract surgery. Due to the patient's failure to apply the prescribed postoperative local anti-inflammatory eyedrops, homogeneous fibrin coating on the anterior surface of the lens occurred, as well as early scarring of the filtering bleb. We performed needling with 5‑fluorouracil and lens polishing with the Nd:YAG laser to achieve sufficient pressure control and vision improvement.

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A 78-year-old man suffered sudden visual loss of his right eye. Five years earlier, he had experienced vision loss of his left eye due to central retinal artery occlusion (CRAO); back then, the etiology for the CRAO was not established. Current ocular ultrasound depicted a hyperechoic spot within the optic nerve in both eyes.

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Purpose: To implant a small-aperture intraocular lens (IOL) (IC-8) in eyes with severe corneal irregularities to reduce higher-order aberrations and provide better central visual acuity.

Setting: University Hospital, LMU Munich, Germany.

Design: Prospective nonrandomized interventional case series.

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Background: Optic disc drusen (ODD) can cause retinal nerve fibre layer (RNFL) defects with progressive visual field (VF) loss. Microvascular changes are discussed as a cause. We measured the vessel density (VD) of the optic disc in ODD using optical coherence tomography angiography and compared it with a normal population.

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Objectives: To identify independent risk factors for permanent visual loss (PVL) in patients with giant cell arteritis (GCA), with a special focus on sonographic findings of the temporal, carotid and subclavian/axillary arteries, and on established scoring systems of ischaemia risk assessment.

Methods: Consecutive patients with a diagnosis of GCA between 2002 and 2013 were retrospectively identified from a prospectively maintained database. Data on clinical characteristics including ophthalmological findings, laboratory values, and sonographic findings of the temporal, carotid an axillary arteries were extracted.

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Purpose: To investigate preoperative ocular risk factors and indications for secondary intraocular lens (IOL) implantation and compare postoperative complications, visual and refractive outcomes in a tertiary referral center.

Methods: Patients older than 14 years that underwent secondary IOL implantation and had a minimum follow-up of 3 months were enrolled in this retrospective case series. Preoperative ocular risk factors, indications for surgery, postoperative complications, and visual and refractive outcomes including prediction error (PE) and absolute error (AE) were evaluated.

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Background: Corneal cross-linking is widely used to treat keratoconus. However, to date, only limited data from randomized trials support its efficacy.

Methods: The efficacy and safety of corneal cross-linking for halting progression of keratoconus were investigated in a prospective, randomized, blinded, placebo controlled, multicentre trial.

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Purpose: The purpose of this study was to determine the quantity and distribution of antigen presenting cells (APC) in various inflammatory and non-inflammatory corneal diseases, comparing in vivo confocal microscopy (IVCM) and immunohistochemistry.

Material And Methods: Corneae of 41 eyes, composed of group 1 (status post herpes-keratitis), group 2 (keratoconus) and group 3 (graft rejection after keratoplasty) were investigated. IVCM was used preoperatively to assess the distribution and density of dendritic cells in the corneal center versus the paracentral area.

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A dense cataract prevents detailed fundus examination which may lead to delayed diagnosis of undiscovered intraocular pathology before cataract surgery. We report two cases where large choroidal melanomas were diagnosed after cataract surgery and/or Nd:Yag laser capsulotomy. In the first case, a dense cataract prevented proper examination of the fundus of an 84-year-old female.

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Purpose: To analyze the appearance of normal conjunctiva and conjunctival inflammation by in vivo confocal microscopy.

Methods: Conjunctiva of 15 normal patients and 21 patients with conjunctivitis including bacterial, papillary, follicular, granulomatous, and cicatrizing disease were analyzed by the Heidelberg retina tomograph (HRTII)/Rostock cornea modul (RCM).

Results: Scans of normal bulbar and tarsal conjunctiva corresponded well to the established anatomy except for a prominent, thickened epithelial basement membrane observed by in vivo microscopy.

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Objectives: To analyze filtering blebs after trabeculectomy by means of in vivo confocal microscopy and to correlate the images with clinical bleb appearance and function.

Method: In vivo confocal microscopy using the Heidelberg Retina Tomograph/Rostock Cornea Module (Heidelberg Engineering, Heidelberg, Germany) was performed in 53 filtering blebs in 45 patients 6 days to 30 years postoperatively.

Results: In vivo confocal microscopic findings significantly correlated with good bleb function included the number of epithelial microcysts (P = .

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