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Transactions of the American Ophthalmological Society

Quan Dong Nguyen, Mohammad Ali Sadiq, Mohamed Kamel Soliman, Aniruddha Agarwal, Diana V Do, Yasir J Sepah
PURPOSE: To determine if two different doses of intravitreal sirolimus, an mTOR inhibitor, can decrease inflammation and is safe in eyes with non-infectious posterior, intermediate, or panuveitis in the Sirolimus as a Therapeutic Approach UVEitis: Protocol-2 (SAVE-2) Study. METHODS: SAVE-2 is a prospective randomized, phase II, open-label interventional clinical trial conducted at 4 clinical centers in the United States. Eligible subjects were randomized into one of two treatments...
August 2016: Transactions of the American Ophthalmological Society
Ivana K Kim, Anne Marie Lane, Purva Jain, Caroline Awh, Evangelos S Gragoudas
PURPOSE: To investigate the safety and potential efficacy of ranibizumab for prevention of radiation complications in patients treated with proton irradiation for choroidal melanoma. METHODS: Forty patients with tumors located within 2 disc diameters of the optic nerve and/or macula were enrolled in this open-label study. Participants received ranibizumab 0.5 mg or 1.0 mg at tumor localization and every 2 months thereafter for the study duration of 24 months. The incidence of adverse events, visual acuity, and other measures of ocular morbidity related to radiation complications were assessed...
August 2016: Transactions of the American Ophthalmological Society
William Joseph Dupps, Ibrahim Seven
PURPOSE: To investigate biomechanical strain as a structural susceptibility metric for corneal ectasia in a large-scale computational trial. METHODS: A finite element modeling study was performed using retrospective Scheimpflug tomography data from 40 eyes of 40 patients. LASIK and PRK were simulated with varied myopic ablation profiles and flap thickness parameters across eyes from LASIK candidates, patients disqualified for LASIK, subjects with atypical topography, and keratoconus subjects in 280 simulations...
August 2016: Transactions of the American Ophthalmological Society
Shahzad I Mian, Paola De la Parra-Colín, Rafael De Melo-Franco, Christopher Johnson, Tonatiuh Barrientos-Gutierrez
PURPOSE: To determine if chronic graft-versus-host disease (cGVHD) after allogeneic hematopoietic stem cell transplantation (HSCT) is associated with stable or progressive dry eye disease and to determine the true incidence in patients with no prior history of dry eye disease. METHODS: A nonconcurrent cohort study at a single institution with 136 patients who had no previous history of dry eye disease before HSCT. Survival analysis was used to estimate dry eye disease incidence...
September 2015: Transactions of the American Ophthalmological Society
Nicholas J Volpe, Joseph Simonett, Amani A Fawzi, Teepu Siddique
PURPOSE: To determine if clinical and histopathologic findings were present in the eyes of patients with amyotrophic lateral sclerosis (ALS) and explore correlations to an animal model of ALS. METHODS: Two patients with ALS were studied histopathologically as well as the retinas of ALS/dementia transgenic mice with dysfunctional ubiquilin2, UBQLN2(P497H). Clinical study 1, an observational, cross-sectional study, was performed using optical coherence tomography (OCT) to obtain and compare mean total macular thickness and average and quadrant specific peripapillary retinal nerve fiber layer (pRNFL) scans from 16 patients with ALS to controls...
2015: Transactions of the American Ophthalmological Society
Timothy Y Y Lai, Raymond L M Wong, Wai-Man Chan
PURPOSE: To evaluate whether half-dose verteporfin photodynamic therapy (PDT) is better than natural history for the treatment of central serous chorioretinopathy (CSC). METHODS: Retrospective review of consecutive CSC patients treated with half-dose verteporfin PDT or untreated with observation and a minimum follow-up of 36 months. The main outcome measures included mean change in visual acuity and CSC recurrence. Survival analysis was performed to compare the CSC recurrence rates between the two groups...
2015: Transactions of the American Ophthalmological Society
Donald Tan, Marcus Ang, Anshu Arundhati, Wei-Boon Khor
PURPOSE: To evaluate outcomes of anterior lamellar keratoplasty (ALK) and endothelial keratoplasty (EK) within the Singapore Corneal Transplant Study (SCTS), with the hypothesis that both ALK and EK are able to provide equivalent or improved clinical outcomes, compared to penetrating keratoplasty (PK), and to determine changing trends globally with other international databases. METHODS: Clinical data on all transplants performed was derived from our SCTS database, a prospective national keratoplasty registry, and clinical outcomes (graft survival, endothelial cell loss, complications, visual acuity) were compared between PK, ALK, and EK...
2015: Transactions of the American Ophthalmological Society
Jason S Slakter, Jeffrey W Schneebaum, Sabah A Shah
PURPOSE: To develop a new diabetic retinopathy severity scoring system and to determine if it can monitor changes from baseline as well as identify precise features that have changed over time. Such a grading system could potentially provide an understanding of the impact of treatments utilizing an algorithmic scoring technique. METHODS: The traditional ETDRS grading system was examined and a flow algorithm based on the grading approach was created. All visual comparative assessment points, relying on identification of features in relation to prior standard photographic images, were evaluated and quantified...
2015: Transactions of the American Ophthalmological Society
Arif O Khan, Mohammed A Aldahmesh, Fowzan S Alkuraya
PURPOSE: To assess for phenotype-genotype correlations in families with recessive pediatric cataract and identified gene mutations. METHODS: Retrospective review (2004 through 2013) of 26 Saudi Arabian apparently nonsyndromic pediatric cataract families referred to one of the authors (A.O.K.) and for which recessive gene mutations were identified. RESULTS: Fifteen different homozygous recessive gene mutations were identified in the 26 consanguineous families; two genes and five families are novel to this study...
2015: Transactions of the American Ophthalmological Society
Jost B Jonas, Ningli Wang, Vinay Nangia
PURPOSE: To test the hypothesis that taking translamina pressure difference into consideration changes associations between ocular perfusion pressure and glaucomatous optic neuropathy. METHODS: The population-based Central India Eye and Medical Study included 4711 subjects. Ocular perfusion pressure was calculated as follows: ⅔ [diastolic blood pressure + ⅓ × (systolic blood pressure - diastolic blood pressure)] - IOP. Cerebrospinal fluid pressure (mm Hg) was estimated as follows: 0...
2015: Transactions of the American Ophthalmological Society
John Danias, Janet Serle
PURPOSE: To determine whether confocal scanning laser ophthalmoscopic imaging (Heidelberg retinal tomography [HRT]) can predict visual field change in glaucoma. METHODS: The study included 561 patients with glaucoma or ocular hypertension whose clinical course was followed at the Mount Sinai Faculty practice. Humphrey visual fields (HVFs) and HRT images were collected on one randomly selected eye per patient. Glaucoma progression was determined by the presence of two sequential statistically significant negative slopes in mean deviation (MD) or visual field index (VFI) at any point during the study period...
2015: Transactions of the American Ophthalmological Society
James T Handa, Mizuki Tagami, Katayoon Ebrahimi, Gregor Leibundgut, Anna Janiak, Joseph L Witztum, Sotirios Tsimikas
PURPOSE: To test the hypothesis that the accumulation of oxidized phospholipids (OxPL) in the macula is toxic to the retina unless neutralized by a variety of mechanisms, including binding by lipoprotein(a) [Lp(a)], which is composed of apolipoprotein(a) [apo(a)] and apolipoprotein B-100 (apoB). METHODS: Human maculas and eyes from two Lp(a) transgenic murine models were subjected to morphologic, ultrastructural, and immunohistochemical analysis. "Wild-type Lp(a)" mice, which express human apoB-100 and apo(a) that contains oxidized phospholipid, and "mutant LBS(-) Lp(a)" mice with a defective apo(a) lysine binding site (LBS) for oxidized phospholipid binding, were fed a chow or high-fat diet for 2 to 12 months...
2015: Transactions of the American Ophthalmological Society
Esen K Akpek, Sandra D Cassard, Karen Dunlap, Sarah Hahn, Pradeep Y Ramulu
PURPOSE: To compare short-term outcomes of repeat penetrating keratoplasty (PK) to those of Boston type 1 keratoprosthesis (KPro). Our hypothesis was that visual outcomes were superior for KPro compared to PK. METHODS: This is a retrospective, nonrandomized, intermediate-term case series. Consecutive adults with one or more failed PKs who underwent either PK or KPro between January 2008 and December 2010 were included. Demographics, indication for the initial PK, comorbidities, concomitant procedures, and complications were considered...
2015: Transactions of the American Ophthalmological Society
R V Paul Chan, Samir N Patel, Michael C Ryan, Karyn E Jonas, Susan Ostmo, Alexander D Port, Grace I Sun, Andreas K Lauer, Michael F Chiang
PURPOSE: To describe the design, implementation, and evaluation of a tele-education system developed to improve diagnostic competency in retinopathy of prematurity (ROP) by ophthalmology residents. METHODS: A secure Web-based tele-education system was developed utilizing a repository of over 2,500 unique image sets of ROP. For each image set used in the system, a reference standard ROP diagnosis was established. Performance by ophthalmology residents (postgraduate years 2 to 4) from the United States and Canada in taking the ROP tele-education program was prospectively evaluated...
2015: Transactions of the American Ophthalmological Society
Massimo Busin, Silvana Madi, Vincenzo Scorcia, Paolo Santorum, Yoav Nahum
PURPOSE: To test the hypothesis that a new microkeratome-assisted penetrating keratoplasty (PK) technique employing transplantation of a two-piece mushroom-shaped graft may result in better visual outcomes and graft survival rates than those of conventional PK. METHODS: Retrospective chart review of 96 eyes at low risk and 76 eyes at high risk for immunologic rejection (all with full-thickness central corneal opacity and otherwise healthy endothelium) undergoing mushroom PK between 2004 and 2012 at our Institution...
2015: Transactions of the American Ophthalmological Society
Clement K Chan, Atul Jain, Srinivas Sadda, Neeta Varshney
PURPOSE: To study optical coherence tomographic (OCT) results and vision at 6 months after transition (post-Tx) from intravitreal bevacizumab and/or ranibizumab to aflibercept for treatment of neovascular age-related macular degeneration (nAMD). The null hypothesis was the lack of improvements in OCT metrics and vision outcome in study eyes at 6 months after transitioning from bevacizumab or ranibizumab to aflibercept. METHODS: This retrospective study assessed 6 monthly OCT (Cirrus) data after transitioning to aflibercept for eyes on prior Legacy-ranibizumab, Legacy-bevacizumab, or mixed treatment for nAMD...
July 2014: Transactions of the American Ophthalmological Society
David Sarraf, Anthony Joseph, Ehsan Rahimy
PURPOSE: To describe the risk factors, pathogenesis, and prognosis of retinal pigment epithelial (RPE) tears and to demonstrate our hypothesis that continued anti-vascular endothelial growth factor (VEGF) therapy after an RPE tear has occurred correlates with improved long-term visual and anatomical outcomes. METHODS: We searched a database of 10,089 patients and retrospectively identified a large case series of 56 eyes with neovascular age-related macular degeneration (AMD) complicated by an RPE tear over an 8-year period...
July 2014: Transactions of the American Ophthalmological Society
Baruch D Kuppermann, Leandro Cabral Zacharias, M Cristina Kenney
PURPOSE: To determine if potentially viable alternatives to the clinical use of intravitreal triamcinolone acetonide should be considered based on a comparative assessment of the in vitro effects of five commercially available corticosteroids. We hypothesized that dexamethasone, betamethasone, methylprednisolone, loteprednol etabonate, and fluocinolone acetonide, at clinically relevant doses, may show different levels of in vitro cytotoxicity to retinal cells. METHODS: Cultures of human retinal pigment epithelial cells (ARPE-19) and rat embryonal neurosensory precursor retinal cells (R28) were treated with dexamethasone, betamethasone, methylprednisolone, loteprednol, or fluocinolone acetonide...
July 2014: Transactions of the American Ophthalmological Society
Stephen H Tsang, Lawrence Chan, Yi-Ting Tsai, Wen-Hsuan Wu, Chun-Wei Hsu, Jin Yang, Joaquin Tosi, Katherine J Wert, Richard J Davis, Vinit B Mahajan
PURPOSE: To assess the functional consequences of silencing of tuberin, an inhibitor of the mTOR signaling pathway, in a preclinical model of retinitis pigmentosa (RP) in order to test the hypothesis that insufficient induction of the protein kinase B (PKB)-regulated tuberin/mTOR self-survival pathway initiates apoptosis. METHODS: In an unbiased genome-scale approach, kinase peptide substrate arrays were used to analyze self-survival pathways at the onset of photoreceptor degeneration...
July 2014: Transactions of the American Ophthalmological Society
Janey L Wiggs, Anne M Langgurth, Keri F Allen
PURPOSE: CYP1B1 mutations cause autosomal recessive congenital glaucoma. Disease risk assessment for families with CYP1B1 mutations requires knowledge of the population mutation carrier frequency. The purpose of this study is to determine the CYP1B1 mutation carrier frequency in clinically normal individuals residing in the United States. Because CYP1B1 mutations can exhibit variable expressivity, we hypothesize that the mutation carrier frequency is higher than expected. METHODS: Two hundred fifty individuals without glaucoma or a family history of glaucoma were enrolled...
July 2014: Transactions of the American Ophthalmological Society
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