Publications by authors named "Alice T Lyon"

To examine the prevalence and predictors of patient awareness of their disease in adults with age-related macular degeneration (AMD). This study analyzed 5553 adults 40 years or older in the 2005-2008 National Health and Nutrition Examination Survey who underwent retinal imaging. AMD was determined based on retinal images.

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Purpose: This study was performed to characterize changes in contrast sensitivity (CS) that occur in patients with age-related macular degeneration (AMD) using a novel test, the motion diamond stimulus (MDS).

Methods: This was a cross-sectional study in which 20 subjects with unilateral exudative AMD (eAMD) and contralateral dry AMD received 3 assessments: the Pelli-Robson (PR) CS Chart, the MDS test, and a visual function questionnaire-25 (VFQ-25). CS results from the PR, and MDS tests were compared across 3 groups: eyes with eAMD vs dry AMD, eAMD vs control, dry AMD vs control.

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Aim: To investigate the prevalence of retinal pathology in patients with a history of exposure to pentosan polysulfate sodium (PPS).

Methods: Patients exposed to PPS and seen in the ophthalmology clinic at Northwestern University during 1/1/2002 to 1/1/2019 were identified from electronic health records (EHR) by an electronic data warehouse (EDW) search. Visual acuity (VA), reasons for clinic visit, ocular conditions, and duration of exposure to PPS were noted.

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Purpose: This study evaluated a novel tool known as the motion diamond stimulus (MDS), which utilizes contrast-generated illusory motion in dynamic test regions to determine contrast sensitivity (CS).

Methods: Patients with treated unilateral retinal vein occlusions (RVOs) underwent three assessments: the MDS, the Pelli-Robson (PR), and the National Eye Institute's Visual Function Questionnaire (VFQ-25). The MDS assessment produced two data end points, α and β.

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Article Synopsis
  • The study evaluates the long-term effects of a treat and extend (TAE) regimen using anti-VEGF agents on patients with neovascular age-related macular degeneration (NV-AMD).
  • Over an average follow-up of 3.4 years, patients received about 20 injections, with most maintaining or improving their visual acuity; 74% experienced improvements.
  • Optical coherence tomography (OCT) results showed a significant reduction in sub-retinal and intra-retinal fluid, indicating effective treatment regardless of the specific anti-VEGF agent used.
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Purpose: To demonstrate a novel approach to scleral fixation of posterior chamber intraocular lenses and capsular tension rings and segments in deep-set eyes using the Finesse FlexLoop (Alcon Laboratories).

Methods: The technique described herein, based on previous approaches to scleral fixation of posterior chamber intraocular lenses, uniquely employs the FlexLoop to "lasso" Gore-Tex sutures that have already been threaded through the eyelets of a CZ70BD (Alcon Laboratories) IOL and externalize them.

Results: All patients who underwent surgery with this technique experienced visual improvement.

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Importance: Bilateral diffuse uveal melanocytic proliferation is a rare sign of several systemic malignant neoplasms.

Observations: A patient presenting with uveal melanocytic proliferation underwent a detailed physical examination and extensive imaging. No systemic malignant neoplasm was found.

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Background And Objective: Submacular fluid (SMF) can persist for months to years following rhegmatogenous retinal detachment (RD) repair. The authors' objective was to describe fundus autofluorescence (FAF) and optical coherence tomography (OCT) findings associated with the absorption of persistent submacular fluid (SMF) following RD repair.

Patients And Methods: Retrospective review of clinical data and FAF and OCT imaging from sequential postoperative visits in a cohort of patients with persistent SMF following RD repair.

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Purpose: To determine the prevalence of retinopathy among patients undergoing heart transplantation screening and to determine the impact of this finding on eligibility for transplantation.

Methods And Patients: A retrospective case series was collected to perform an institutional review of all inpatient consults for dilated eye examinations on potential heart transplant candidates over 5.5 years-from March 27, 2008 to October 10, 2014.

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Background And Objective: To study the prevalence of peripheral retinal disease in patients with Marfan Syndrome (MFS).

Patients And Methods: In this observational, cross-sectional case series, patients with MFS were recruited by the Marfan Eye Consortium of Chicago during the National Marfan Foundation's annual conference. Patients underwent a fully dilated exam by vitreoretinal specialists in addition to ultra-widefield fundus photography using a scanning laser ophthalmoscope (Optos 200Tx; Optos PLC, Dunfermline, Scotland, United Kingdom).

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Background And Objective: To quantitatively evaluate the change in pigment epithelial detachment (PED) morphology on spectral-domain optical coherence tomography (SD-OCT) 18 months after the transition to intravitreal aflibercept in patients with neovascular age-related macular degeneration (AMD) with PED recalcitrant to monthly intravitreal bevacizumab or ranibizumab.

Patients And Methods: Retrospective case series examining patients with neovascular AMD who had a persistent fibrovascular or serous PED on SD-OCT. PED volume was calculated by manually outlining the PED on individual OCT slices of the raster scan and multiplying by the pixel dimensions.

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Purpose: To describe the long-term outcomes of patients with cytomegalovirus (CMV) retinitis and AIDS in the modern era of combination antiretroviral therapy.

Design: Prospective, observational cohort study.

Participants: Patients with AIDS and CMV retinitis.

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Purpose: To evaluate the risk of cataract in the setting of AIDS.

Design: Prospective cohort study.

Participants: Subjects with AIDS free of ocular opportunistic infections throughout catamnesis.

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Purpose: To evaluate the imaging characteristics of macular neovascular pigment epithelial detachments (PEDs) and their response to anti-vascular endothelial growth factor (VEGF) therapy.

Methods: Patients with exudative age-related macular degeneration (AMD), idiopathic polypoidal choroidal vasculopathy, presumed ocular histoplasmosis syndrome (POHS) and central serous retinopathy (CSR) with choroidal neovascularisation (CNV) were included in the study. A retrospective chart review of 72 eyes of 64 patients was performed.

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Purpose: To report the incidence and clinical outcomes of non-cytomegalovirus (non-CMV) ocular opportunistic infections in patients with acquired immunodeficiency syndrome (AIDS) in the era of highly active antiretroviral therapy.

Design: Multicenter, prospective, observational study of patients with AIDS.

Methods: Medical history, ophthalmologic examination, and laboratory tests were performed at enrollment and every 6 months subsequently.

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Objective: To evaluate cataract risk in eyes of patients with AIDS and cytomegalovirus (CMV) retinitis and to identify risk factors.

Design: Prospective cohort study.

Participants: Patients with AIDS and CMV retinitis.

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Purpose: To investigate the relationship between contrast sensitivity (CS) and mortality among people with acquired immunodeficiency syndrome (AIDS); and to explore the hypothesis that abnormal CS is a marker of systemic, life-threatening microvascular disease.

Design: Longitudinal, observational cohort study.

Methods: We evaluated 3395 eyes of 1706 individuals enrolled in the Longitudinal Study of the Complications of AIDS (1998-2008).

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Purpose: To report the clinical findings and management of a case of fungal keratitis with extension into the anterior chamber following penetrating keratoplasty.

Methods: Interventional case report.

Results: A 45-year-old man developed a white, cottonball-like mass in the anterior chamber 3 months after penetrating keraplasty for keratoconus.

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Purpose: To report the use of photodynamic therapy with verteporfin as a treatment for patients with focal retinal pigment epithelial leaks secondary to central serous chorioretinopathy (CSC).

Design: Noncomparative, nonrandomized, retrospective interventional case series.

Participants: Nine eyes of 9 symptomatic patients with acute focal retinal pigment epithelial leaks secondary to CSC, confirmed with fluorescein angiography, evaluated at 1 of 3 referral retina practices.

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Purpose: To describe the presenting features and surgical outcomes in a series of children with rhegmatogenous retinal detachments.

Design: Retrospective, noncomparative, interventional case series.

Participants: Thirty-nine eyes of 34 children 18 years of age or younger undergoing surgery for rhegmatogenous retinal detachment.

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