Optometry Commons^™

Visual Factors Associated With Physical Activity In Schoolchildren, Síofra Harrington, John Kearney Prof, Veronica O'Dwyer Dr

Articles

Clinical relevance Physical activity is an essential part of childhood physical and mental development. Recent research identified visual problems associated with a sedentary lifestyle in children in Ireland.

Background This study explored the association between visual function in children and their engagement with physical activities outside school.

Methods Participants were 1,626 schoolchildren (728 aged 6–7 years, 898 old 12–13 years) in randomly selected schools in Ireland. Before data collection, parents/legal guardians of participants completed a standardised questionnaire reporting physical activity as no activity (mostly on screens), light activity (occasional walking/cycling), moderate activity (/week engaged in sports), or regular activity ( …

Eye Care Protocol In Critically Ill Pediatric Patients On Neuromuscular Blockage, Jinnie Tkach

Dissertations

Abstract

Problem: Patients admitted to the pediatric intensive care unit (PICU) are at increased risk for the development of ocular surface disease (OSD) due to impaired ocular mechanisms while intubated, sedated, and on continuous neuromuscular blockade. The purpose of this project is to prevent OSD and vision impairments by increasing the frequency of eye care in accordance with a PICU eye care protocol.

Methods: An observational descriptive study was conducted utilizing retrospective and prospective chart review. Comparisons were drawn between the 2021 pre intervention group and the 2022 post intervention group regarding the impact of linking lubricating eye ointment orders …

Divergent Outer Retinal Circuits Drive Image And Non-Image Visual Behaviors, Nange Jin, Samer Hattar, Johan Pahlberg

Faculty, Staff and Student Publications

Image- and non-image-forming vision are essential for animal behavior. Here we use genetically modified mouse lines to examine retinal circuits driving image- and non-image-functions. We describe the outer retinal circuits underlying the pupillary light response (PLR) and circadian photoentrainment, two non-image-forming behaviors. Rods and cones signal light increments and decrements through the ON and OFF pathways, respectively. We find that the OFF pathway drives image-forming vision but cannot drive circadian photoentrainment or the PLR. Cone light responses drive image formation but fail to drive the PLR. At photopic levels, rods use the primary and secondary rod pathways to drive the …

Analysis Of Tear-Film Breakup Using Fluorescence Video Recordings, Tobin Driscoll, Richard Braun, Rayanne Luke, Carolyn G. Begley

Biology and Medicine Through Mathematics Conference

No abstract provided.

Investigating The Effect Of Dissolved Oxygen-Assisted Corneal Cross-Linking (Cxl) On Porcine Corneas, Julianni Dar

Electronic Theses and Dissertations

Corneal cross-linking is a clinical procedure that is known to stop the progression of keratoconus, an eye disease that affects the cornea’s structure, ultimately leading to vision loss in its advanced stages. The typical treatment plan includes riboflavin and UV-A exposure in the hope to increase the mechanical properties of the cornea. There are two types of CXL pathways, with Type-II CXL requiring oxygen. Naturally, the dissolved oxygen is limited in the cornea; therefore, limiting the effect of Type-II CXL. This study proposes to improve the Type-II CXL contribution by integrating dissolved oxygen during the standard CXL treatment used in …

A Trained Eye: Optometrists' View Into Primary Care, Louis C. Magee Iii

Honors Theses

The aim of this thesis is to explore and present the auxiliary responsibilities of doctors of optometry, particularly those involved with primary health care such as screening for serious diseases. This idea was approached by researching the technological capabilities of optometrists, the diseases and conditions they commonly detect, as well as the barriers preventing some people from receiving proper eye care. The importance of optometrists as primary care providers is steadily rising alongside their capabilities. There are many instances within a routine eye exam in which an optometrist is able to detect and recommend treatment of a serious disease. Also …

Book Review: The Ophthalmic Laser Handbook, William L. Miller Od, Ms, Phd

Optometric Clinical Practice

Book Review: Freisberg L, Lighthizer N, Skorin, Jr. L, Stonecipher K, and Zimmerman A. The Ophthalmic Laser Handbook. First Edition. Wolters Kluwer Health; 2021. $102.00, 350 pages, Paperback ISBN: 978-1975170172, e-book ISBN: 978-1975170219

Case Report: Bartonella Quintana-Associated Neuroretinitis, Kelly Seidler Od, Kelly A. Malloy Od

Optometric Clinical Practice

Background: Neuroretinitis is a self-limiting condition which typically causes monocular vision loss with good potential for visual recovery. It may be idiopathic or associated with infectious or inflammatory conditions which can carry systemic implications. Neuroretinitis classically presents with disc edema followed by development of a macular star pattern of exudates. It is most commonly attributed to Cat Scratch Disease, or Bartonella henselae infection. However, there have been few published reports of Bartonella quintana associated neuroretinitis.

Case Report: A 60-year-old patient presented with unilateral vision loss preceded by flu-like illness. The patient had exposure to a recently adopted cat. …

Bilateral, Full-Thickness Macular Holes While Undergoing Chemotherapy, Sarah Dieter Od, Brett Garee Od Ms, Susan Zacatelco Od, Julie Henry Od

Optometric Clinical Practice

Background: Bilateral, full-thickness macular holes are a rare condition that can substantially affect quality of life. Macular hole diagnosis and treatment is key for these patients.

Case Report: A 71 year old Caucasian male presented with a chief complaint of distance blur in both eyes, worsening over the past 1-2 weeks. He had no diagnosis of diabetes. He added that his prostate cancer had spread and that his last treatment ended 9 days ago. He was ultimately diagnosed with bilateral, full-thickness macular holes. Referral to a retinal specialist for surgical management yielded good results.

Conclusion: This is …

Cefuroxime-Induced Toxic Maculopathy: A Cataract Co-Management Conundrum, Leonid Skorin Jr., Do, Od, Ms

Optometric Clinical Practice

Background: Cefuroxime-induced toxic maculopathy can occur when an incorrect dilution is injected intracamerally after cataract surgery. This results in a guarded visual prognosis. Cefuroxime-induced toxic maculopathy can also occur sporadically even when the medication dilution is the standard correct dosage. These patients usually recover their vision by the first postoperative week.

Case Report: A 72-year-old Caucasian female developed cefuroxime-induced toxic maculopathy after uneventful cataract surgery. Investigation of the case confirmed that she had a sporadic response to the cefuroxime. It was verified that she received the standard correct dilution of cefuroxime intracamerally. The patient showed a significant improvement in her …

Isolated Optic Neuropathy As The Presenting Sign Of Neurosyphilis, Kasey Zann Od, Molly Johnson Od, James Fabian Od

Optometric Clinical Practice

Background: Detection and treatment of syphilitic ocular disease without a known history of syphilis is often difficult due to its varied presentations. Early diagnosis and treatment are the key to reducing risk of permanent vision loss, particularly with optic nerve and retinal manifestations.

Case Report: This case report describes a 44 year-old male who was diagnosed with neurosyphilis through his work-up for unilateral optic neuropathy.

Conclusion: This report illustrates the importance of including syphilis lab testing in the setting of optic nerve edema. Syphilis should be considered in any inflammatory ocular disease, especially in patients with atypical presentations and high-risk …

Medication-Induced Oculomotor Dysfunction: A Report Of Two Cases, Eric Lee Od

Optometric Clinical Practice

Background: Consideration of current medications and their interactions as a source of new onset oculomotor dysfunction is imperative for providing good eye care. Medication etiology should be particularly suspected when the symptoms begin with the initiation of a new medication and resolved with discontinuation of the same medication.

Case Reports: Presented are two cases demonstrating that it is prudent to be aware of medications capable of inducing oculomotor dysfunction. Each case reveals instances of acute oculomotor dysfunction after the initiation of a central nervous system affecting medication. Case 1 details a partial pupil sparing third nerve palsy after initiating the …

Longstanding Crystalline Retinopathy Secondary To Intravitreal Triamcinolone Injection, Katherine Thomas Od, Jeffery Curry Od

Optometric Clinical Practice

Background: Crystalline retinopathy has many disparate etiologies with varying potentials in visual outcome. Due to the potential severity of these outcomes, differentiation of etiology is critical to guide both follow up and treatment regimen. Diagnosis can be facilitated with a thorough medical history, clinical presentation, and imaging such as optical coherence tomography (OCT).

Case Report: This case demonstrates a rare incidence of crystalline retinopathy in a 65-year-old male attributed to a single intravitreal triamcinolone acetonide (IVTA) injection with 8 year follow up data, followed by a review of other types of crystalline retinopathy secondary to pharmaceutical agents.

Conclusion: A complete …

It’S As Easy As Learning To Fly A Plane, Paul B. Freeman Od

Optometric Clinical Practice

Letter from the Editor-in-Chief

Progressive Lenses And Acute Anisomentropia, Alena Lane

Conference Papers

The aim of the poster is to demonstrate that presbyopic patients with acute anisometropia can continue using progressive lenses. Acute or induced anisometropia occurs when a sudden change in the prescription is introduced. A typical example of this occurs following the cataract operation to one eye. The problem arises when the difference in refractive power of both eyes after the operation is 2.00D and more. The difference in lens power can cause the eyes to see different size images and lead to difficulties in fusing them. Additionally, when an image is viewed off axis through the spectacle lens away from …

Interpersonal Communication In Eye Care: An Analysis Of Potential Impacts On Cataract Surgery Candidates’ Expectations And Behaviors, Amy Hellem, Sara Labelle, Cynthia Matossian, Paul Karpecki

Communication Faculty Articles and Research

Purpose: To identify cataract surgery candidates’ knowledge, beliefs, desires and emotions as they relate to cataract surgery generally as well as to their behavioral intent to adhere to a doctor-recommended pre-surgical ocular surface prep routine designed to improve refractive outcomes and prevent surgical complications.

Methods: This national, noninterventional, cross-sectional, mixed methods survey included 278 US adults ages 65 and older with no history of cataract surgery in either eye.

Results: Only 20% of participants said they want to have cataract surgery, and even fewer (8%) said they wish they could have cataract surgery right away. Fear was the predominant emotion …

Big Data Analysis Of Vision Screening Standards Used To Evaluate Fitness To Drive, Michael Moore, John Butler, Daniel Ian Flitcroft, James Loughman

Articles

Purpose: Visual acuity (VA) assessment is the most commonly performed vision screening method for drivers. The standards and repeat assessment intervals used, however, are arbitrary, lack an evidence base and are highly variable across different countries. This study utilizes the power of Big Data to provide evidence-based recommendations for standardized driver vision screening.

Methods: Anonymized electronic medical record data were gathered from 40 Irish optometry practices comprising 81,184 unique patients. A Kaplan-Meier Survival (KMS) analysis was used to determine the effect of increasing age and time since screening on the likelihood of passing the VA standard for driving. A logistic …

Surgical Training In Ophthalmology: Role Of Eyesi In The Era Of Simulation-Based Learning, Sehrish Nizar Ali Momin, Abdul Sami Memon, Muhammad Bilal Malik, Pir Salim Meher

Section of Ophthalmology

Recent advancements in surgical training methods have escalated the need for simulators. The EyeSi simulation has played a major role in Ophthalmology training by providing opportunity to the novice residents to grasp the surgical steps of the procedure and master the skill by repeated attempts. Participants were assessed on single level of cataract module and their consecutive scores were assessed with each attempt. It was found that repetitive practice on simulator can help develop proficiency in the desired steps that can ultimately prepare the surgical trainees for real life surgery.

Role Of Optical Coherence Tomography Angiography To Differentiate Intraretinal Microvascular Abnormalities And Retinal Neovascularization In Diabetic Retinopathy, Abdul Sami Memon, Nasir A. Memon, Pir Salim Mahar

Department of Surgery Docs

Objective: To assess proliferative diabetic retinopathy (PDR) and to describe the difference in angiographic representation of new vessels (NVs) and Intra retinal microvascular abnormalities (IRMA) on optical coherence tomography angiography (OCTA).
Methods: A cross-sectional observational study was performed at ISRA Postgraduate Institute of Ophthalmology, Karachi, from March 2018 to September 2018. Forty-two eyes of 21 patients with history of diabetes mellitus (DM) were examined. Twenty-eight eyes with a clinical diagnosis of severe non proliferative diabetic retinopathy (NPDR) or proliferative diabetic retinopathy (PDR) according to early treatment diabetic retinopathy study (ETDRS) were included and evaluated using Swept source optical coherence tomography …

Diagnosis Of Polypoidal Choroidal Vasculopathy From Fluorescein Angiography Using Deep Learning, Yu-Yeh Tsai, Wei-Yang Lin, Shih-Jen Chen, Paisan Ruamviboonsuk, Cheng-Ho King, Chia-Ling Tsai

Publications and Research

Purpose: To differentiate polypoidal choroidal vasculopathy (PCV) from choroidal neovascularization (CNV) and to determine the extent of PCV from fluorescein angiography (FA) using attention-based deep learning networks.

Methods: We build two deep learning networks for diagnosis of PCV using FA, one for detection and one for segmentation. Attention-gated convolutional neural network (AG-CNN) differentiates PCV from other types of wet age-related macular degeneration. Gradient-weighted class activation map (Grad-CAM) is generated to highlight important regions in the image for making the prediction, which offers explainability of the network. Attention-gated recurrent neural network (AG-PCVNet) for spatiotemporal prediction is applied for segmentation of PCV. …