Ophthalmology Commons^™

High-Throughput Screening Of Fda-Approved Drugs For Protecting Retinal Pigment Epithelial Cells Against Er Stress Induced Cell Death: Implications For Age-Related Macular Degeneration, Shaima Ali Jawarneh

Wayne State University Theses

Purpose: Age-related macular degeneration (AMD) is a leading cause of blindness in the elderly population, characterized by the degeneration of the retinal pigment epithelium (RPE). The link between endoplasmic reticulum (ER) stress and AMD is well established, however FDA-approved medications for the treatment of AMD caused by unregulated ER stress are limited and have potential side effects. The purpose of this study was to conduct a comprehensive screening of the FDA-approved drug library in order to identify potential candidates that could be repurposed in order to protect against the degeneration and death of RPE cells due to ER stress.

Methods: …

Phase 1 Trial Of Tpi 287, A Microtubule Stabilizing Agent, In Combination With Bevacizumab In Adults With Recurrent Glioblastoma, Samuel A Goldlust, Louis B Nabors, Sigmund Hsu, Nimish Mohile, Paul J Duic, Tara Benkers, Samuel Singer, Mayank Rao, Lori Cappello, Sandra L Silberman, George Farmer

Faculty, Staff and Student Publications

BACKGROUND: Recurrent glioblastoma (rGBM) has limited treatment options. This phase 1 protocol was designed to study the safety and preliminary efficacy of TPI 287, a central nervous system penetrant microtubule stabilizer, in combination with bevacizumab (BEV) for the treatment of rGBM.

METHODS: GBM patients with up to 2 prior relapses without prior exposure to anti-angiogenic therapy were eligible. A standard 3 + 3 design was utilized to determine the maximum tolerated dose (MTD) of TPI 287. Cohorts received TPI 287 at 140-220 mg/m

RESULTS: Twenty-four patients were enrolled at 6 centers. Treatment was generally well tolerated. Fatigue, myelosuppression, and peripheral …

Aligning Eye Care Provider Beliefs With Behaviors: Exploring And Improving Ocular Surface Disease Decision-Making In A Cataract Surgery Clinic, Amy Hellem

Communication (PhD) Dissertations

Millions of cataract surgeries are performed every year in the United States, yet both surgeon reports and patient reports indicate that practices are not utilizing the diagnostic tests and treatments that are advocated in the medical literature to identify and manage ocular surface disease prior to surgery. As a result, patients risk suffering several significant consequences with regard to their vision, comfort and safety. Personal observations from my 25 years of experience working with ophthalmologists and optometrists led to curiosity regarding the root cause of undertreatment of ocular surface disease. Specifically, I had the impression that eye care providers held …

Suprachoroidal Space Injection Technique Expert Panel Guidance, Charles C. Wykoff, Robert L. Avery, Mark R. Barakat, David S. Boyer, David M. Brown, Alexander J. Brucker, Emmett T. Cunningham Jr., Jeffrey S. Heier, Nancy M. Holekamp, Peter K. Kaiser, Arshad M. Khanani, Judy E. Kim, Hakan Demirci, Carl D. Regillo, Glenn C. Yiu, Thomas A. Ciulla

Wills Eye Hospital Papers

Purpose:

To develop professional guidelines for best practices for suprachoroidal space (SCS) injection, an innovative technique for retinal therapeutic delivery, based on current published evidence and clinical experience.

Methods:

A panel of expert ophthalmologists reviewed current published evidence and clinical experience during a live working group meeting to define points of consensus and key clinical considerations to inform the development of guidelines for in-office SCS injection.

Results:

Core consensus guidelines for in-office SCS injection were reached and reported by the expert panel. Current clinical evidence and physician experience supported SCS injection as a safe and effective method for delivering retinal …

Evaluating The Efficacy Of The Archaeal Proteasome To Alleviate Protein-Misfolding Retinopathy, Celine Brooks

Graduate Theses, Dissertations, and Problem Reports (ETD)

Nearly all neurodegenerative diseases (NDs) and some eye diseases are characterized by the presence of misfolded and aggregated proteins. The ubiquitin proteasome system (UPS) is responsible for degrading the majority of proteins including misfolded and aggregated proteins. However, in NDs the performance of the UPS is impaired, and this impairment partially comes from these protein aggregates inhibiting the proteasome. This inhibition leads to an accumulation of protein aggregates, more proteasomal inhibition, and fewer chaperones for newly synthesized proteins, triggering a collapse in proteostasis, which is thought to contribute to the pathogenesis of NDs. Consequently, stimulating proteasome function is being investigated …

Social Determinants Of Health: Evaluation Using Rates Of Vision Screening And Follow-Up Examinations, Madeline Dyer

Williams Honors College, Honors Research Projects

Vision care is essential to the quality of life of young children, impacting them over the course of their lives. Social Determinants of Health (SDOH) affect the likelihood of a child having access to appropriate care specified by the Bright Futures. The aim of this study was to assess the impact of SDOH on the completion of vision screening and the rate of follow-up with an eye care provider when applicable. In addition, rates of instrument-based vision screening and recommended ophthalmology follow-up were compared with COI, a metric assessing the quality of resources available and the conditions that matter for …

A Proposal For The Use Of A Fixed Low-Energy Selective Laser Trabeculoplasty For Open Angle Glaucoma, Zachary Sacks, L. Jay Katz, Gus Gazzard, Sarah H. Van Tassel, Eytan Z. Blumenthal, Fabian S. Lerner, Augusto Azuara-Blanco, Gregory John Roy Spooner, Yoram Solberg, Thomas Samuelson, Michael Belkin

Wills Eye Hospital Papers

Selective laser trabeculoplasty (SLT) has been in routine clinical use for over 20 years with millions of patients successfully treated and a low rate of clinically significant complications. The procedure requires the clinician to manually position the laser beam on the trabecular meshwork using a gonioscopy lens and to titrate the SLT laser energy based on the amount of pigmentation in the angle, as well as the observation of small bubbles produced by the laser effect. We propose that SLT energy titration is unnecessary either to achieve intraocular pressure (IOP) reduction or to minimize potential side effects. Ample evidence to …

Genotypes Of Snps Of Key Genes Regulate Susceptibility And Drug Sensitivity To Neovascular Amd, Jinglin Cui

Theses and Dissertations (ETD)

Age-related macular degeneration (AMD), particularly its neovascular form, stands as a leading cause of blindness globally, with its prevalence in our country on a steady rise. This underscores the critical impact of neovascular AMD (nAMD) management on patient quality of life and societal burden. Current optimal treatments hinge on anti-vascular endothelial growth factor (anti-VEGF) therapies, though their efficacy varies across different drugs and individuals, highlighting the importance of precise drug selection in clinical outcomes. Research suggests that factors such as baseline vision, age, disease duration, lesion size, central retina thickness, neovascularization type, and demographic differences influence nAMD prognosis. In addition, …

Patients With Floaters: Answers From Virtual Assistants And Large Language Models, Gloria Wu, Weichen Zhao, Adrial Wong, David A Lee

Faculty, Staff and Student Publications

OBJECTIVES: "Floaters," a common complaint among patients of all ages, was used as a query term because it affects 30% of all people searching for eye care. The American Academy of Ophthalmology website's "floaters" section was used as a source for questions and answers (www.aao.org). Floaters is a visual obstruction that moves with the movement of the eye. They can be associated with retinal detachment, which can lead to vision loss. With the advent of large language model (LLM) chatbots ChatGPT, Bard versus virtual assistants (VA), Google Assistant, and Alexa, we analyzed their responses to "floaters."

METHODS: Using AAO.org, "Public …

Gaze Transition Entropy As A Measure Of Attention Allocation In A Dynamic Workspace Involving Automation, Zixin Cui, Tetsuya Sato, Austin Jackson, Sampath Jayarathna, Makoto Itoh, Yusuke Yamani

Psychology Faculty Publications

Real-world work environments require operators to perform multiple tasks with continual support from an automated system. Eye movement is often used as a surrogate measure of operator attention, yet conventional summary measures such as percent dwell time do not capture dynamic transitions of attention in complex visual workspace. This study analyzed eye movement data collected in a controlled a MATB-II task environment using gaze transition entropy analysis. In the study, human subjects performed a compensatory tracking task, a system monitoring task, and a communication task concurrently. The results indicate that both gaze transition entropy and stationary gaze entropy, measures of …

Altered Outer Retinal Structure, Electrophysiology And Visual Perception In Parkinson's Disease, Katie K N Tran, Pei Ying Lee, David I Finkelstein, Allison M Mckendrick, Bao N Nguyen, Bang V Bui, Christine T O Nguyen

Faculty, Staff and Student Publications

BACKGROUND: Visual biomarkers of Parkinson's disease (PD) are attractive as the retina is an outpouching of the brain. Although inner retinal neurodegeneration in PD is well-established this has overlap with other neurodegenerative diseases and thus outer retinal (photoreceptor) measures warrant further investigation.

OBJECTIVE: To examine in a cross-sectional study whether clinically implementable measures targeting outer retinal function and structure can differentiate PD from healthy ageing and whether these are sensitive to intraday levodopa (L-DOPA) dosing.

METHODS: Centre-surround perceptual contrast suppression, macular visual field sensitivity, colour discrimination, light-adapted electroretinography and optical coherence tomography (OCT) were tested in PD participants (n = …

Safety And Efficacy Of Ixoberogene Soroparvovec In Neovascular Age-Related Macular Degeneration In The United States (Optic): A Prospective, Two-Year, Multicentre Phase 1 Study, Arshad M. Khanani, David S. Boyer, Charles C. Wykoff, Carl D. Regillo, Brandon G. Busbee, Dante Pieramici, Carl J. Danzig, Brian C. Joondeph, James C. Major, Adam Turpcu, Szilárd Kiss

Wills Eye Hospital Papers

Background

Gene therapy, successfully used in rare, monogenetic disorders, may prove to be a durable management approach for common, polygenetic conditions, including neovascular age-related macular degeneration (nAMD). Repeated injections, oftentimes monthly, and possibly for decades, of vascular endothelial growth factor antagonists (anti-VEGF), is the standard for nAMD. We hypothesised that an in-office, intravitreal administration of ixoberogene soroparvovec (ixo-vec, formerly ADVM-022), a single-dose gene therapy encoding for the proven anti-VEGF protein, aflibercept, would transform retinal cells to continually produce aflibercept to minimise treatment burden in nAMD.

Methods

In this two-year, open-label, prospective, multicentre phase 1 study, patients with nAMD responding to …

Accuracy Of Swept Source Biometry Device In Detecting Macular Diseases Compared With Swept Source Oct, Sidra Zafar, Taha Muneer Ahmed, Rashid Baig, Irfan Jeeva, Rehman Siddiqui

Department of Ophthalmology & Visual Sciences

Objective: To assess the diagnostic accuracy of the IOLMaster 700 foveal scans to detect foveal pathology compared with a standard swept-source optical coherence tomography (SS-OCT) device.
Results: One hundred seventy eye scans of 95 patients were included in the final analyses. Ninety-nine (58.2%) scans were classified as abnormal by SS-OCT. Mean sensitivity of the biometry device was 67.5% (range: 51-84%) and mean specificity was 69.5% (range: 44-95%). Intra-class correlation coefficients were 0.912 and 0.835, for reader 1 and 2, respectively. Area under the curve for receiver operating curve was 0.726. Foveal scans of the IOLMaster 700 can provide clinically useful …

C-Case 2023: Promoting Excellence In Surgical Education: Canadian Conference For The Advancement Of Surgical Education, Oct. 12-13, 2023, Montréal, Quebec, Jeffrey Sioufi, Brandon Hall, Ryan Antel, Sarah Moussa, Mathushan Subasri, Mustafa Fakih, Nehal Islam, Reggie C. Hamdy, Sonaina Chopra, Karim Damji

Department of Ophthalmology & Visual Sciences

No abstract provided.

Investigating The Microbiome Of The Eye And The Potential Of Probiotic Use In Optometry, Rachel Hartgerink

Theses/Capstones/Creative Projects

While the eye was once considered free of resident bacteria due to its efficient immunity mechanisms, recent studies have determined that most healthy eyes contain a variety of microbiota. Many studies have been aimed at classifying bacteria that are part of the core microbiome of the eye and the conditions under which they differ. As with gut health, a dysbiosis of ocular bacteria could correlate to disease, which presents the idea of treatment with probiotics to help regulate the microbiota of the eye. This study utilized growth assays to determine a common probiotic’s effect on bacteria that can be found …

Characterization Of Ocular Surface Pathology And Tear Film Dysfunction Due To Type 1 And Type 2 Diabetes Mellitus, Judy Weng

Pharmaceutical Sciences (PhD) Dissertations

Untreated diabetes mellitus leads to development of microvascular and macrovascular complications affecting heart, nerves, kidney, and eyes. While the etiological mechanisms of diabetes-associated retinopathy and cataract have been well characterized, the time kinetics and the severity of diabetes-mediated injury to the ocular surface and its various components like tear film, goblet cells and glycocalyx, has not yet been investigated. These pathological changes can potentially cause dry eye and corneal injury including epithelial erosion, impaired wound healing and keratopathy. As the mainstay treatment option for the management of dry eye disease due to diabetes mellitus, artificial tears are frequently used. Therefore, …

The Iris Registry: A Novel Approach To Clinical Registry Development In Ophthalmology, John C. Lin, Leslie Hyman, Ingrid U. Scott

Wills Eye Hospital Papers

No abstract provided.

Evaluation Of The Success Rate Of Endoscopic Dacryocystorhinostomy With Early Bicanalicular Stent Removal, Lauren N. Demaria, Evan H. Black, Dianne M. Schlachter

Conference Presentation Abstracts

No abstract provided.

A Multicenter Study Validates The Who 2022 Classification For Conjunctival Melanocytic Intraepithelial Lesions With Clinical And Prognostic Relevance, Hardeep Singh Mudhar, Yamini Krishna, Simon Cross, Claudia Auw-Haedrich, Raymond Barnhill, Svetlana Cherepanoff, Ralph Eagle, James Farmer, Robert Folberg, Hans Grossniklaus, Martina C. Herwig-Carl, Martin Hyrcza, Sandra Lassalle, Karin U. Loeffler, Alexandre Moulin, Tatyana Milman, Robert M. Verdijk, Steffen Heegaard, Sarah E. Coupland

Wills Eye Hospital Papers

Several nomenclature and grading systems have been proposed for conjunctival melanocytic intraepithelial lesions (C-MIL). The fourth "WHO Classification of Eye Tumors" (WHO-EYE04) proposed a C-MIL classification, capturing the progression of noninvasive neoplastic melanocytes from low- to high-grade lesions, onto melanoma in situ (MIS), and then to invasive melanoma. This proposal was revised to the WHO-EYE05 C-MIL system, which simplified the high-grade C-MIL, whereby MIS was subsumed into high-grade C-MIL. Our aim was to validate the WHO-EYE05 C-MIL system using digitized images of C-MIL, stained with hematoxylin and eosin and immunohistochemistry. However, C-MIL cases were retrieved from 3 supraregional ocular pathology …

Teprotumumab As Monotherapy For Dysthyroid Optic Neuropathy: A Multicenter Study, Giannis Moustafa, Irina Belinsky, Cat Burkat, Stella Chung, Brent Hayek, Alon Kahana, Amina Malik, John Nguyen, Sathyadeepak Ramesh, Sarah Turner, Alison Watson, Roman Shinder

Conference Presentation Abstracts

No abstract provided.