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Disorganization retinal inner layers

Dilraj S Grewal, Seenu M Hariprasad, Glenn J Jaffe
No abstract text is available yet for this article.
April 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
Ward Fickweiler, Ann-Sofie M E Schauwvlieghe, Reinier O Schlingemann, Johanna M Maria Hooymans, Leonoor I Los, Frank D Verbraak
PURPOSE: To establish the predictive value of specific optical coherence tomography retinal features on visual outcomes and retinal thickness during anti-vascular endothelial growth factor treatment in patients with diabetic macular edema. METHODS: Post hoc analysis of compound data of a prospective, 6-month, multicenter, randomized controlled trial of 119 patients with diabetic macular edema receiving either intravitreal bevacizumab or ranibizumab were analyzed to assess the associations between baseline retinal morphologic parameters and change in best-corrected visual acuity and central subfield thickness...
April 11, 2017: Retina
Renee C Ryals, Michael D Andrews, Shreya Datta, Aaron S Coyner, Cody M Fischer, Yuquan Wen, Mark E Pennesi, Trevor J McGill
Purpose: Prospective treatments for age-related macular degeneration and inherited retinal degenerations are commonly evaluated in the Royal College of Surgeons (RCS) rat before translation into clinical application. Historically, retinal thickness obtained through postmortem anatomic assessments has been a key outcome measure; however, utility of this measurement is limited because it precludes the ability to perform longitudinal studies. To overcome this limitation, the present study was designed to provide a baseline longitudinal quantification of retinal thickness in the RCS rat by using spectral-domain optical coherence tomography (SD-OCT)...
March 1, 2017: Investigative Ophthalmology & Visual Science
Dilraj S Grewal, Matthew L O'Sullivan, Martina Kron, Glenn J Jaffe
PURPOSE: To determine whether disorganization of retinal inner layers (DRIL) assessed by spectral domain optical coherence tomography (SD-OCT) correlates with visual acuity (VA) in eyes with uveitic cystoid macular edema (CME). DESIGN: Secondary analysis of Randomized Clinical Trial data. METHODS: Fifty-six eyes of 42 patients with uveitic CME were prospectively imaged as part of the VISUAL-1 trial ( identifier NCT01138657)...
February 22, 2017: American Journal of Ophthalmology
Vinod Kumar, Rohan Chawla, Koushik Tripathy
BACKGROUND AND OBJECTIVE: To report a distinct optical coherence tomography (OCT) appearance of macular combined hamartoma of retina and retinal pigment epithelium (CHRRPE). PATIENTS AND METHODS: This is a retrospective case series of four eyes of four patients with macular CHRRPE who were assessed with the help of color fundus photographs, swept-source OCT (SS-OCT), and fundus fluorescein angiography wherever required. RESULTS: All four patients presented with decreased visual acuity...
February 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
Tomas S Aleman, Grace Han, Leona W Serrano, Nicole M Fuerst, Emily S Charlson, Denise J Pearson, Daniel C Chung, Anastasia Traband, Wei Pan, Gui-Shuang Ying, Jean Bennett, Albert M Maguire, Jessica I W Morgan
PURPOSE: To describe in detail the central retinal structure of a large group of patients with choroideremia (CHM). DESIGN: A prospective, cross-sectional, descriptive study. PARTICIPANTS: Patients (n = 97, age 6-71 years) with CHM and subjects with normal vision (n = 44; ages 10-50 years) were included. METHODS: Subjects were examined with spectral-domain optical coherence tomography (SD OCT) and near-infrared reflectance imaging...
March 2017: Ophthalmology
Kumar Abhiram Jha, Tapas C Nag, Shashi Wadhwa, Tara Sankar Roy
Light causes damage to the retina, which is one of the supposed factors for age-related macular degeneration in human. Some animal species show drastic retinal changes when exposed to intense light (e.g. albino rats). Although birds have a pigmented retina, few reports indicated its susceptibility to light damage. To know how light influences a cone-dominated retina (as is the case with human), we examined the effects of moderate light intensity on the retina of white Leghorn chicks (Gallus g. domesticus). The newly hatched chicks were initially acclimatized at 500 lux for 7 days in 12 h light: 12 h dark cycles (12L:12D)...
December 2016: Journal of Biosciences
Chandrakumar Balaratnasingam, Maiko Inoue, Seungjun Ahn, Jesse McCann, Elona Dhrami-Gavazi, Lawrence A Yannuzzi, K Bailey Freund
PURPOSE: To determine if the area of the foveal avascular zone (FAZ) is correlated with visual acuity (VA) in diabetic retinopathy (DR) and retinal vein occlusion (RVO). DESIGN: Cross-sectional study. PARTICIPANTS: Ninety-five eyes of 66 subjects with DR (65 eyes), branch retinal vein occlusion (19 eyes), and central retinal vein occlusion (11 eyes). METHODS: Structural optical coherence tomography (OCT; Spectralis, Heidelberg Engineering) and OCT angiography (OCTA; Avanti, Optovue RTVue XR) data from a single visit were analyzed...
November 2016: Ophthalmology
Raphaelle Despréaux, Sarah Mrejen, Gabriel Quentel, Salomon Y Cohen
PURPOSE: To report spectral-domain optical coherence tomography, en face optical coherence tomography (OCT), and optical coherence tomography angiography findings in retinal astrocytic hamartomas. METHODS: Four cases of retinal astrocytic hamartomas, with small white or yellowish typical retinal mass, were imaged with fundus photography, intravenous fluorescein angiography, fundus autofluorescence, spectral-domain OCT, en face OCT, and OCT angiography. RESULTS: The tumor was solitary in all cases and involved the posterior pole...
August 9, 2016: Retinal Cases & Brief Reports
Sarah Perez-Roustit, Virginie Marquette, Béatrice Bocquet, Josseline Kaplan, Isabelle Perrault, Isabelle Meunier, Christian P Hamel
PURPOSE: To describe a patient with mutations in KCNJ13 presenting particular clinical features. METHODS: Standard ophthalmic examination, fundus autofluorescence, spectral domain optical coherence tomography, full-field electroretinography. The 3 exons of KCNJ13 were polymerase chain reaction amplified and Sanger sequenced. PATIENTS: A 31-year-old man with Leber congenital amaurosis. RESULTS: Patient had nystagmus since childhood, best-corrected visual acuity limited to 20/400 OD and 20/200 OS, and had cataracts extracted in both eyes...
May 19, 2016: Retinal Cases & Brief Reports
Aaron B Simmons, Morgan M Merrill, Justin C Reed, Michael R Deans, Malia M Edwards, Peter G Fuerst
PURPOSE: Abnormal retinal angiogenesis leads to visual impairment and blindness. Understanding how retinal vessels develop normally has dramatically improved treatments for people with retinal vasculopathies, but additional information about development is required. Abnormal neuron patterning in the outer retina has been shown to result in abnormal vessel development and blindness, for example, in people and mouse models with Crumbs homologue 1 (CRB1) mutations. In this study, we report and characterize a mouse model of inner retinal lamination disruption and bleeding, the Down syndrome cell adhesion molecule (Dscam) mutant, and test how neuron-neurite placement within the inner retina guides development of intraretinal vessels...
April 2016: Investigative Ophthalmology & Visual Science
Amelia R Bachleda, Larysa H Pevny, Ellen R Weiss
PURPOSE: Müller glia (MG), the principal glial cells of the vertebrate retina, display quiescent progenitor cell characteristics. They express key progenitor markers, including the high mobility group box transcription factor SOX2 and maintain a progenitor-like morphology. In the embryonic and mature central nervous system, SOX2 maintains neural stem cell identity. However, its function in committed Müller glia has yet to be determined. METHODS: We use inducible, MG-specific genetic ablation of Sox2 in vivo at the peak of MG genesis to analyze its function in the maturation of murine MG and effects on other cells in the retina...
March 2016: Investigative Ophthalmology & Visual Science
Mariana Previato, Fábio Batista Frederico, Fernando Henrique Antunes Murata, Rubens Camargo Siqueira, Amanda Pires Barbosa, Aparecida Perpétuo Silveira-Carvalho, Cristina da Silva Meira, Vera Lúcia Pereira-Chioccola, Ricardo Gava, Plínio Pereira Martins Neto, Luiz Carlos de Mattos, Cinara Cássia Brandão de Mattos
BACKGROUND: Toxoplasmosis was recently included as a neglected disease by the Center for Disease Control. Ocular toxoplasmosis is one clinical presentation of congenital or acquired infection. The laboratory diagnosis is being used worldwide to support the clinical diagnosis and imaging. The aim of this study was to evaluate the use of serology and molecular methods to monitor acute OT in immunocompetent patients during treatment. METHODS: Five immunocompetent patients were clinically diagnosed with acute OT...
December 7, 2015: BMC Research Notes
Guo-Jie Ye, Thomas Conlon, Kirsten Erger, Peter Sonnentag, Alok K Sharma, Kellie Howard, David R Knop, Jeffrey D Chulay
Applied Genetic Technologies Corporation is developing a recombinant adeno-associated virus (rAAV) vector for treatment of X-linked retinoschisis (XLRS), an inherited retinal disease characterized by splitting (schisis) of the layers of the retina, which causes poor vision. We report here results of a study evaluating the safety and biodistribution of rAAV2tYF-CB-hRS1 in RS1-deficient mice. Three groups of male RS1-deficient mice received an intravitreal injection in one eye of either vehicle, or rAAV2tYF-CB-hRS1 at one of two dose levels (1 × 10(9) or 4 × 10(9) vg/eye) and were sacrificed 30 or 90 days later...
September 2015: Human Gene Therapy. Clinical Development
Richard F Spaide
PURPOSE: To investigate the retinal vascular findings and associated anatomic abnormalities in the central macula of eyes with diabetic retinopathy using volume-rendered angiographic and structural optical coherence tomography. STUDY DESIGN: Observational case series. METHODS: In this retrospective study 25 eyes of 14 consecutive patients were imaged with optical coherence tomography (OCT) using split-spectrum amplitude decorrelation. The structural OCT data were segmented for cystoid spaces and integrated into the angiographic data for subsequent volume rendering...
December 2015: American Journal of Ophthalmology
Susov Dhakal, Craig B Stevens, Meyrav Sebbagh, Omri Weiss, Ruth A Frey, Seth Adamson, Eric A Shelden, Adi Inbal, Deborah L Stenkamp
BACKGROUND: Functions for the early embryonic vasculature in regulating development of central nervous system tissues, such as the retina, have been suggested by in vitro studies and by in vivo manipulations that caused additional ocular vessels to develop. Here, we use an avascular zebrafish embryo, cloche-/- (clo-/-), to begin to identify necessary developmental functions of the ocular vasculature in regulating development and patterning of the neural retina, in vivo. These studies are possible in zebrafish embryos, which do not yet rely upon the vasculature for tissue oxygenation...
November 2015: Developmental Dynamics: An Official Publication of the American Association of Anatomists
Vera L Bonilha, Mary E Rayborn, Brent A Bell, Meghan J Marino, Craig D Beight, Gayle J Pauer, Elias I Traboulsi, Joe G Hollyfield, Stephanie A Hagstrom
PURPOSE: To evaluate the histopathology in donor eyes from patients with autosomal dominant retinitis pigmentosa (ADRP) caused by p.P23H, p.P347T and p.P347L rhodopsin ( RHO ) gene mutations. METHODS: Eyes from a 72-year-old male (donor 1), an 83-year-old female (donor 2), an 80-year-old female (donor 3), and three age-similar normal eyes were examined macroscopically, by scanning laser ophthalmoscopy and optical coherence tomography imaging. Perifoveal and peripheral pieces were processed for microscopy and immunocytochemistry with markers for photoreceptor cells...
December 2015: Graefe's Archive for Clinical and Experimental Ophthalmology
Luke Nicholson, Jayashree Ramu, Ioanna Triantafyllopoulou, Namritha V Patrao, Oliver Comyn, Philip Hykin, Sobha Sivaprasad
BACKGROUND: Disorganization of the retinal inner layers (DRIL) on optical coherence tomography (OCT) is thought to represent retinal capillary non-perfusion (CNP) in eyes with diabetic retinopathy. This study was designed to evaluate the ability of DRIL to accurately predict CNP. DESIGN: Retrospective masked reliability and diagnostic accuracy study performed in the National Institute for Health Research (NIHR) Moorfields Biomedical Research Centre, London, UK SAMPLES: Retinal images of patients with diabetic retinopathy METHODS: The OCT images from 90 separate areas of angiographically confirmed perfused and non-perfused areas of the macula from 37 eyes of 31 patients were anonymized and coded...
November 2015: Clinical & Experimental Ophthalmology
Salma H Radwan, Ahmed Z Soliman, Julian Tokarev, Lei Zhang, Frederik J van Kuijk, Dara D Koozekanani
IMPORTANCE: Macular edema (ME) prognosis and treatment response vary according to the underlying abnormalities. Biomarkers of visual acuity (VA) improvement could influence management decisions in different types of ME. OBJECTIVE: To investigate whether disorganization of retinal inner layers (DRIL) and other spectral-domain optical coherence tomography (SD-OCT)-derived variables are associated with subsequent VA after ME resolution in both nondiabetic and diabetic ME...
July 2015: JAMA Ophthalmology
Carol L Shields, Janet Manalac, Chandana Das, Jarin Saktanasate, Jerry A Shields
BACKGROUND: Spectral domain (SD) enhanced depth imaging optical coherence tomography (EDI-OCT) is a useful tool for anatomic, cross-sectional imaging of retinal conditions. AIMS: The aim was to identify characteristic patterns of retinal and retinal pigment epithelial tumors on EDI-OCT in children and adults. SETTINGS AND DESIGN: Retrospective review. MATERIALS AND METHODS: Analysis of published reports and personal observations using office-based EDI-OCT for adults and portable hand-held SD OCT for infants and children...
February 2015: Indian Journal of Ophthalmology
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