1,588 results match your criteria: "Scheie Eye Institute; and.[Affiliation]"

The 2024 Mary Tyler Moore Vision Initiative (MTM Vision) Workshop on Data convened to discuss best practices and specific considerations for building a comprehensive, shareable MTM Vision data lake. The workshop aimed to accelerate the development of new indications, therapies, and regulatory pathways for diabetic retinal disease (DRD) by standardizing and harmonizing clinical data and ocular 'omics analyses. Standardization of data collection, the use of common data elements, and data interoperability were emphasized, alongside federated learning approaches to promote data sharing and collaboration while maintaining data privacy and security.

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Objective: To investigate outcomes of trabeculectomy ab externo in African ancestry primary open-angle glaucoma (POAG) patients, and to analyze the impact of demographic and phenotypic factors on surgical success and complication rates.

Patients And Methods: A retrospective case-control study enrolled 63 eyes of 55 POAG cases who underwent trabeculectomy ab externo. Data on demographics, family glaucoma history, surgical specifics, and pre/postoperative measures (intraocular pressure, visual acuity, visual field, medication usage, complications within one year) were collected.

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Objectives: There are an increasing number of centers performing research on high-resolution vessel wall magnetic resonance imaging (VW-MRI) in giant cell arteritis (GCA). However, harmonized approaches to VW-MRI in GCA are lacking and are essential to performing multicentre studies. Using a data-driven, consensus-based approach, an international expert group developed a standardized MRI protocol and scoring system to advance multi-centered research in cranial GCA.

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Purpose: Resveratrol (RSV) is a nutraceutical compound known for its therapeutic potential in neurodegenerative and metabolic diseases. RSV promotes survival signals in retinal ganglion cells (RGCs) through activation of SIRT1, an NAD+-dependent deacetylase. RSV and SIRT1 reduce RGC loss induced by direct optic nerve injury, but effects in indirect models of traumatic optic neuropathy remain unknown and are examined in this study.

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Article Synopsis
  • * A retrospective study analyzed 18 eyes from patients aged 46 to 93 with chronic NIU-PS who received the FAi, observing factors like previous treatments, uveitis recurrence rates, and visual acuity over an average follow-up of 16.5 months.
  • * Results indicated 61% of eyes had more than five uveitis recurrences prior to treatment, but the majority showed reduced recurrence and improved vision and anatomical measures post-FAi.
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Article Synopsis
  • * The article discusses various aspects of IOP including its determinants, measurement technologies, and the necessity for continuous monitoring as it can significantly influence treatment outcomes in glaucoma patients.
  • * Evidence suggests that IOP varies widely throughout the day, and monitoring IOP outside of clinical visits could provide critical insights, paralleling successful strategies used in managing other health conditions like hypertension and diabetes.
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Retinal prolactin isoform PRLΔE1 sustains rod disease in inherited retinal degenerations.

Cell Death Dis

September 2024

Division of Experimental Retinal Therapies, Department of Clinical Sciences & Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA.

PRLΔE1, a retina-specific isoform of prolactin, is expressed in multiple and diverse forms of canine inherited retinal degeneration (IRD). We find that while PRLΔE1 expression in rods is not associated with the initial phase of disease characterized by acute photoreceptor cell death, it is associated with the protracted phase of slow cell loss. Restoration of photoreceptors to a healthy state by gene-specific replacement therapy of individual IRDs successfully suppresses PRLΔE1 expression.

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The role of Perifoveal Arteriolar Tortuosity in Optical Coherence Tomography Angiography (OCTA) images as an early indicator of hypertensive retinopathy.

Graefes Arch Clin Exp Ophthalmol

September 2024

Department of Ophthalmology, Vagelos College of Physicians and Surgeons, Edward S. Harkness Eye Institute, Columbia University Irving Medical Center, New York, NY, USA.

Purpose: To assess the value of increased perifoveal retinal vascular tortuosity in optical coherence tomography angiography (OCTA) images as a biomarker of early hypertensive retinopathy and compare its clinical sensitivity and accuracy with traditional morphological changes used for Scheie classification.

Methods: OCTA images of 81 eyes (40 eyes from 20 hypertensive subjects and 41 eyes from 21 control subjects) were obtained retrospectively. Hypertensive retinopathy changes in randomized eyes were graded according to the Scheie classification, and perifoveal vessels were traced in a masked fashion.

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Contact Lens-Related Corneal Infections.

Infect Dis Clin North Am

December 2024

Department of Ophthalmology, University of Pennsylvania, Scheie Eye Institute, 51 North 39th Street, Philadelphia, PA 19104, USA.

Article Synopsis
  • - The review discusses the current state of contact lens-associated microbial keratitis (MK), focusing on its prevalence and risk factors such as overnight wear, poor hygiene, and different types of contact lenses.
  • - MK is primarily caused by bacteria but can also be linked to fungi or protozoa, with symptoms including eye pain, redness, and potential vision loss.
  • - Treatment emphasizes preventative measures through good hygiene, along with the use of broad-spectrum medications, while severe cases may require surgical intervention.
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THIS REVIEW EXPLORES POST-OPERATIVE CHALLENGES ARISING FROM CATARACT SURGERY, INCLUDING INTRAOCULAR LENS (IOL) DECENTRATION OR DISLOCATION, REFRACTIVE SURPRISES, DYSPHOTOPSIAS, AND IOL OPACIFICATIONS. IOL DECENTRATION OR DISLOCATION IS RARE, HIGHLIGHTING THE NEED FOR CAREFUL MANAGEMENT WITH MONITORING, SURGICAL REPOSITIONING OR LENS EXCHANGE TO ACHIEVE OPTIMAL VISUAL OUTCOMES. REFRACTIVE SURPRISES, ATTRIBUTED TO ERRORS IN IOL CALCULATION AND SELECTION, MAY BE MANAGED CONSERVATIVELY OR SURGICALLY, WITH THE MOST ACCURATE RESULTS ACHIEVED BY LASER VISION CORRECTION.

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Background: Leber congenital amaurosis 1 (LCA1), caused by mutations in GUCY2D, is a rare inherited retinal disease that typically causes blindness in early childhood. The aim of this study was to evaluate the safety and preliminary efficacy of ascending doses of ATSN-101, a subretinal AAV5 gene therapy for LCA1.

Methods: 15 patients with genetically confirmed biallelic mutations in GUCY2D were included in this phase 1/2 study.

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Purpose: This study evaluates the effects of glucagon-like peptide-1 receptor (GLP-1R) agonists on intraocular pressure (IOP).

Design: Retrospective clinical cohort study.

Methods: The University of California Health Data Warehouse was queried for patients exposed to GLP-1R agonists or other oral antidiabetics.

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Development of oculomics artificial intelligence for cardiovascular risk factors: A case study in fundus oculomics for HbA1c assessment and clinically relevant considerations for clinicians.

Asia Pac J Ophthalmol (Phila)

September 2024

School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, United States; Department of Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States. Electronic address:

Artificial Intelligence (AI) is transforming healthcare, notably in ophthalmology, where its ability to interpret images and data can significantly enhance disease diagnosis and patient care. Recent developments in oculomics, the integration of ophthalmic features to develop biomarkers for systemic diseases, have demonstrated the potential for providing rapid, non-invasive methods of screening leading to enhance in early detection and improve healthcare quality, particularly in underserved areas. However, the widespread adoption of such AI-based technologies faces challenges primarily related to the trustworthiness of the system.

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Article Synopsis
  • Study Purpose
  • : The research aimed to analyze the relationship between the monoclonal antibody teprotumumab and hearing loss, reviewing existing evidence about its ototoxic effects.
  • Data Review Process
  • : A systematic review included 7 studies focusing on 109 patients who received teprotumumab, while excluding non-relevant articles and those lacking comprehensive audiometric data.
  • Findings and Conclusion
  • : Ototoxicity was identified in 41% of patients, mainly affecting higher frequency hearing. Enhanced screening for hearing issues is suggested, but the exact occurrence rate is still unclear, highlighting the need for further research.
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Article Synopsis
  • Genome-wide association studies (GWAS) have identified genetic links to autoimmune disorders but don't pinpoint causal variants or affected cell types; this research enhances understanding using advanced 3D genomic datasets.
  • By integrating various genomic techniques, the study maps disease-associated variants to likely regulatory effector genes across 57 human cell types, revealing the complex genetic landscape of autoimmune diseases.
  • The investigation identifies both shared and specific genetic pathways, leading to the exploration of squalene synthase as a potential drug target for controlling inflammation in conditions like multiple sclerosis and systemic lupus erythematosus.
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Article Synopsis
  • Adeno-associated virus (AAV) can effectively deliver genes to retinal ganglion cells (RGCs), but there's a limitation due to packaging size and cell selectivity of the therapeutic genes.
  • This study evaluates the effectiveness of various RGC-selective promoters, including gamma-synuclein (SNCG) and neurofilament heavy chain (NEFH), alongside parts of the atonal bHLH transcription factor 7 (ATOH7) enhancer.
  • Results indicate that both SNCG and NEFH promoters are similarly effective for gene delivery and enhancing RGC survival, but the NEFH promoter has the advantage of a smaller size for packaging, making it more suitable for delivering larger genes in future applications.
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Upholding artificial intelligence transparency in ophthalmology: A call for collaboration between academia, industry, and government for patient care in the 21st century.

Asia Pac J Ophthalmol (Phila)

September 2024

Department of Ophthalmology, Scheie Eye Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States; School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, United States; Envision Health Technologies, Inc, United States; Visi Health Technologies, Inc, United States. Electronic address:

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Vitreoretinopathy in Asymptomatic Children With CTNNB1 Syndrome.

JAMA Ophthalmol

September 2024

Department of Ophthalmology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.

Importance: Previous studies have identified familial exudative vitreoretinonpathy (FEVR) in patients with CTNNB1 syndrome based on severe congenital ocular phenotypes. However, ophthalmoscopy may not be sufficient to detect vision-threatening vitreoretinopathy in all patients.

Objective: To report a consecutive retrospective case series of 11 patients with CTNNB1 variants who had previously unremarkable ophthalmoscopic examination results and to describe their detailed ophthalmic phenotypes.

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Inducible RPE-specific GPX4 knockout causes oxidative stress and retinal degeneration with features of age-related macular degeneration.

Exp Eye Res

October 2024

FM Kirby Center for Molecular Ophthalmology, Scheie Eye Institute, Department of Ophthalmology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, 19104, USA. Electronic address:

Age-related macular degeneration (AMD) is one of the leading causes of vision loss in the elderly. This disease involves oxidative stress burden in the retina leading to death of retinal pigment epithelial (RPE) cells and photoreceptors. The retina is susceptible to oxidative stress, in part due to high metabolic activity and high concentration of polyunsaturated fatty acids that undergo lipid peroxidation chain reactions.

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A multi-stakeholder, patient centric approach will be critical to the design of future successful clinical trials with outcome measures relevant to the RDH12-IRD population.

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Purpose: To describe the retinal phenotype of an unusual case of anti-TRPM1 autoantibody-positive unilateral melanoma-associated retinopathy (MAR) triggered by nivolumab therapy and compare with the phenotype of -associated Congenital Stationary Night Blindness (-CSNB).

Observations: Unilateral MAR was diagnosed 3 months after starting nivolumab therapy for consolidation of a successfully treated melanoma. Retinal autoantibodies against TRPM1 were identified.

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Corneal Epithelial Thickness in Sjogren's Disease: A Pilot Study.

Clin Ophthalmol

July 2024

Department of Ophthalmology, Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA.

Purpose: This study was to assess corneal epithelial thickness (CET) in patients with Sjogren's disease (SjD).

Methods: A retrospective chart review was conducted of SjD patients from September 2021 to January 2022. Patient demographics, unanesthetized Schirmer's test, serologic markers, and symptoms as measured by the Ocular Surface Disease Index (OSDI) were reviewed.

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Dexamethasone Intracanalicular Insert versus Standard Topical Steroids for the Prophylaxis of Inflammation after Cataract Surgery.

Am J Ophthalmol

December 2024

Kellogg Eye Center and Department of Ophthalmology and Visual Sciences (J.N.S., H.L., C.T.H., S.I.M.), University of Michigan, Ann Arbor, Michigan, USA. Electronic address:

Purpose: To compare the efficacy of an intracanalicular dexamethasone intracanalicular insert (DII) to a topical prednisolone acetate 1% taper for preventing breakthrough inflammation (iritis or cystoid macular edema [CME]) during the first postoperative month (POM1) after cataract surgery.

Design: Retrospective, nonrandomized comparative interventional study.

Methods: Patients received either DII or topical prednisolone acetate 1% eyedrops (control) during POM1.

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Purpose: To investigate intereye agreement in dry-eye disease (DED) signs in the Dry Eye Assessment and Management study.

Methods: Tear break-up time (TBUT), Schirmer test, conjunctival staining, corneal staining, meibomian gland dysfunction (MGD), and tear osmolarity were measured at baseline, 3, 6, and 12 months. Intereye agreement was assessed by intraclass correlation coefficient, weighted kappa, and percentage of participants with absolute intereye difference (AID) exceeding a clinically significant threshold (2 points for conjunctival staining and MGD, 2 seconds for TBUT, 3 points for corneal staining, 5 mm/5 minutes for Schirmer test, and 8 mOsms/L for osmolarity).

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Article Synopsis
  • Recent genomic studies have found common genetic factors among alcohol, opioid, tobacco, and cannabis use disorders, though the specific genes and variants involved remain largely unknown.
  • Researchers utilized advanced genomic datasets from various human cell types to investigate genomic regions related to these disorders, identifying significant heritability enrichments in specific cell types, especially in iPSC-derived cortical neurons and pancreatic beta cells.
  • The study also uncovered important genetic connections between substance use disorders and Type 2 diabetes, suggesting that certain cell types play crucial roles in understanding the mechanisms behind these disorders.
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