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Microperimetry

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https://www.readbyqxmd.com/read/29758035/changes-in-macular-pigment-optical-density-after-membrane-peeling
#1
Mario R Romano, Gilda Cennamo, Piergiacomo Grassi, Federica Sparnelli, Davide Allegrini, Giovanni Cennamo
INTRODUCTION: To highlight the differences in macular pigment optical density (MPOD) between eyes with vitreoretinal interface syndrome and healthy control eyes, to assess the changes in MPOD in eyes treated with macular peeling, to investigate the relationships between MPOD changes and measures of retinal sensitivity such as best corrected visual acuity (BCVA) and microperimetry. METHODS: In this cross-sectional comparative study, 30 eyes affected by idiopathic epiretinal membrane (iERM, 15eyes) or full-thickness macular hole (FTMH, 15eyes) were compared with 60 eyes from 30 healthy age-matched patients...
2018: PloS One
https://www.readbyqxmd.com/read/29725542/macular-integrity-assessment-and-fixation-analysis-in-chronic-central-serous-chorioretinopathy
#2
Joanna Dolar-Szczasny, Anna Święch-Zubilewicz, Jerzy Mackiewicz
Purpose: To investigate retinal sensitivity characteristics associated with morphologic changes in the eyes exhibiting chronic central serous chorioretinopathy (CSC), using macular integrity assessment (MAIA) microperimetry. Methods: A retrospective, cross-sectional, observational study was constructed. The eyes of patients classified as chronic CSC, according to the onset of subjective symptoms with serous retinal detachment, as confirmed by optical coherence tomography examination, were included in the study...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29706620/the-effect-of-trabeculectomy-surgery-on-the-central-visual-field-in-patients-with-glaucoma-using-microperimetry-and-optical-coherence-tomography
#3
Gokulan Ratnarajan, Jasleen K Jolly, Imran H Yusuf, John F Salmon
PURPOSE: To determine the functional and structural effects of trabeculectomy surgery on patients with advanced glaucoma and central visual field defects in the early post-operative period. METHODS: Thirty consecutive adult subjects with advanced glaucoma requiring trabeculectomy surgery and an established visual field defect within 10° of fixation underwent microperimetry (MAIA MP-1, CenterVue, Padova, Italy) and optic disc optical coherence tomography (OCT) imaging (Spectralis, Heidelberg Engineering, Germany) pre-operatively, and 1 month and 3 months following trabeculectomy surgery...
April 30, 2018: Eye
https://www.readbyqxmd.com/read/29706619/microperimetry-and-optical-coherence-tomography-imaging-in-the-fellow-eye-of-patients-with-unilateral-focal-ischaemic-glaucoma
#4
Imran H Yusuf, Jasleen K Jolly, Gokulan Ratnarajan, John F Salmon
PURPOSE: To determine whether microperimetry or optical coherence tomography (OCT) imaging can detect early disease in the fellow eye of patients with unilateral focal ischaemic glaucoma. METHODS: Thirty-seven consecutive adult patients with unilateral focal ischaemic glaucoma with a unilateral split-fixation visual field defect on standard automated perimetry (SAP) with normal SAP in the fellow eye were selected. All patients underwent microperimetry (MAIA, CenterVue, Italy) of the central 10 degrees and OCT imaging (Spectralis, Heidelberg Engineering, Germany) of the retinal nerve fibre layer of both eyes...
April 30, 2018: Eye
https://www.readbyqxmd.com/read/29699983/correspondence-between-retinotopic-cortical-mapping-and-conventional-functional-and-morphological-assessment-of-retinal-disease
#5
Markus Ritter, Allan Hummer, Anna A Ledolter, Graham E Holder, Christian Windischberger, Ursula M Schmidt-Erfurth
PURPOSE: The present study describes retinotopic mapping of the primary visual cortex using functional MRI (fMRI) in patients with retinal disease. It addresses the relationship between fMRI data and data obtained by conventional assessment including microperimetry (MP) and structural imaging. METHODS: Initial testing involved eight patients with central retinal disease (Stargardt disease, STGD) and eight with peripheral retinal disease (retinitis pigmentosa, RP), who were examined using fMRI and MP (Nidek MP-1)...
April 26, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29696099/individual-test-point-fluctuations-of-macular-sensitivity-in-healthy-eyes-and-eyes-with-age-related-macular-degeneration-measured-with-microperimetry
#6
Mirella Telles Salgueiro Barboni, Zsuzsanna Szepessy, Dora Fix Ventura, János Németh
Purpose: To establish fluctuation limits, it was considered that not only overall macular sensitivity but also fluctuations of individual test points in the macula might have clinical value. Methods: Three repeated measurements of microperimetry were performed using the Standard Expert test of Macular Integrity Assessment (MAIA) in healthy subjects ( N = 12, age = 23.8 ± 1.5 years old) and in patients with age-related macular degeneration (AMD) ( N = 11, age = 68...
April 2018: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/29686914/optical-coherence-tomography-angiography-of-purtscher-retinopathy-after-severe-traffic-accident-in-16-year-old-boy
#7
Hassan Hamoudi, Marie Krogh Nielsen, Torben Lykke Sørensen
Purpose: To describe optical coherence tomography (OCT) angiography (OCTA) in a case of Purtscher retinopathy. Methods: A 16-year-old male underwent ophthalmological examination including color fundus photography, spectral domain OCT, OCTA, and microperimetry. Examination was performed 10 days, 1 month, and 6 months after the trauma. Diagnosis was based on the characteristic clinical presentation. Patients: A single patient case. Results: Only the right eye was affected, and all examinations of the left eye were normal...
2018: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/29679616/early-detection-of-diabetic-retinopathy
#8
REVIEW
Hamid Safi, Sare Safi, Ali Hafezi-Moghadam, Hamid Ahmadieh
Diabetic retinopathy (DR) is a primary cause of visual impairment worldwide. Diabetes mellitus may be associated with ophthalmoscopically nonvisible neurovascular damage that progresses before the first clinical signs of DR appear. Reduction of the inner neuroretinal layer thickness on macular optical coherence tomography (OCT), reduced contrast sensitivity primarily at low spatial frequencies, abnormal results in color vision and microperimetry tests, and a prolonged implicit time recorded by multifocal electroretinography have been proposed for detection of early functional and nonvisible structural neuroretinal changes...
April 18, 2018: Survey of Ophthalmology
https://www.readbyqxmd.com/read/29625472/visual-cortex-activation-in-patients-with-stargardt-disease
#9
Paolo Melillo, Anna Prinster, Valentina Di Iorio, Gaia Olivo, Francesco Maria D'Alterio, Sirio Cocozza, Ada Orrico, Mario Quarantelli, Francesco Testa, Arturo Brunetti, Francesca Simonelli
Purpose: Primary visual cortex (PVC) contains a retinotopic map in which the central visual field (CVF) is highly magnified compared to the peripheral field. Several studies have used functional magnetic resonance imaging (fMRI) in patients with macular degeneration to assess the reorganization of visual processing in relationship with the development of extrafoveal preferred retinal locus (PRL). We evaluated the functional response in PVC and its correlation with retinal parameters in patients with Stargardt disease due to ABCA4 mutations (STGD1)...
March 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29623253/partial-reversal-of-color-vision-impairment-in-type-2-diabetes-associated-with-obstructive-sleep-apnea
#10
Rajiv Raman, Aditya Verma, Sangeetha Srinivasan, Deepak Bhojwani
Objective: Tritan anomaly is a known acquired color defect seen in diabetic patients, with or without the evidence of clinical signs of diabetic retinopathy (DR). We report a case of a 45-year-old diabetic patient with tritan pattern color defect associated with obstructive sleep apnea and its partial reversal with continuous positive airway pressure (CPAP) ventilation. Methods: A 45-year-old male with diabetes, wildlife photographer by profession, presented with specific complaints of seeing all objects in the surrounding with a greenish tinge in both the eyes...
2018: GMS Ophthalmology Cases
https://www.readbyqxmd.com/read/29623252/intraocular-inflammation-in-a-case-of-bee-sting-injury
#11
Ekta Rishi, Pukhraj Rishi
A19-year-old man presented with decreased vision in the right eye following a bee sting injury, ten days back. Examination revealed conjunctival hyperemia at the site of the sting, anterior uveitis, vitritis, mild disc hyperemia, ocular hypotony, and striae at macula. Treatment was initiated elsewhere with topical antibiotics, steroid, and cycloplegic. Systemic steroids were added. Three weeks later, vitiritis resolved, intraocular pressure became normal and the vision improved from 20/60 to 20/20. However, a chorioretinal atrophy in the vicinity of the sting site was noted...
2018: GMS Ophthalmology Cases
https://www.readbyqxmd.com/read/29589232/autologous-neurosensory-retinal-free-patch-transplantation-for-persistent-full-thickness-macular-hole
#12
Chiara De Giacinto, Rossella D'Aloisio, Gabriella Cirigliano, Marco Rocco Pastore, Daniele Tognetto
PURPOSE: To evaluate anatomical and functional outcomes after autologous neurosensory retinal free patch (ANRFP) transplantation for persistent idiopathic full-thickness macular hole (iFTMH). METHODS: A 65-year-old woman with persistent macular hole in her right eye after previous 27-gauge pars plana vitrectomy with internal limiting membrane peeling and long-acting gas tamponade underwent ANRFP transplantation. Before surgery, best corrected visual acuity in her right eye was 20/800...
March 27, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29553543/regenerative-therapy-by-suprachoroidal-cell-autograft-in-dry-age-related-macular-degeneration-preliminary-in-vivo-report
#13
Paolo Giuseppe Limoli, Enzo Maria Vingolo, Celeste Limoli, Sergio Zaccaria Scalinci, Marcella Nebbioso
This study is aimed at examining whether a suprachoroidal graft of autologous cells can improve best corrected visual acuity (BCVA) and responses to microperimetry (MY) in eyes affected by dry Age-related Macular Degeneration (AMD) over time through the production and secretion of growth factors (GFs) on surrounding tissue. Patients were randomly assigned to each study group. All patients were diagnosed with dry AMD and with BCVA equal to or greater than 1 logarithm of the minimum angle of resolution (logMAR)...
February 12, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29546474/effects-of-subtenon-injected-autologous-platelet-rich-plasma-on-visual-functions-in-eyes-with-retinitis-pigmentosa-preliminary-clinical-results
#14
Umut Arslan, Emin Özmert, Sibel Demirel, Firdevs Örnek, Figen Şermet
PURPOSE: One of the main reasons for apoptosis and dormant cell phases in degenerative retinal diseases such as retinitis pigmentosa (RP) is growth factor withdrawal in the cellular microenvironment. Growth factors and neurotrophins can significantly slow down retinal degeneration and cell death in animal models. One possible source of autologous growth factors is platelet-rich plasma. The purpose of this study was to determine if subtenon injections of autologous platelet-rich plasma (aPRP) can have beneficial effects on visual function in RP patients by reactivating dormant photoreceptors...
March 15, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29498239/retinal-sensitivity-following-intraocular-silicone-oil-and-gas-tamponade-for-rhegmatogenous-retinal-detachment
#15
Laura M Scheerlinck, Peter A Schellekens, Albert T Liem, Daan Steijns, Redmer van Leeuwen
PURPOSE: To investigate whether intraocular silicone oil (SO) tamponade is associated with functional changes in patients with both macula-on and macula-off rhegmatogenous retinal detachments (RRDs). METHODS: Prospective observational cohort study of patients with RRD treated by vitrectomy with gas or SO tamponade at the University Medical Center Utrecht. Outcome was best-corrected visual acuity (BCVA) and retinal sensitivity on microperimetry 2 months after surgery...
March 2, 2018: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29495877/macular-sensitivities-measured-by-microperimetry-in-patients-on-hydroxychloroquine-treatment
#16
Mustafa Eren, Murat Kucukevcilioglu, Ali Hakan Durukan
PURPOSE: To examine retinal sensitivity in patients on hydroxychloroquine (HCQ) with no evidence of retinopathy. MATERIALS AND METHODS: Seventy patients on HCQ and 30 healthy control subjects were included prospectively. All subjects underwent complete ophthalmic examination including best corrected visual acuity, tonometry, colour vision testing, biomicroscopy of anterior segment, dilated fundoscopy, 10-2 visual field testing, and spectral domain optical coherence tomography...
March 20, 2018: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/29477964/visual-function-metrics-in-early-and-intermediate-dry-age-related-macular-degeneration-for-use-as-clinical-trial-endpoints
#17
Kimberly J Cocce, Sandra S Stinnett, Ulrich F O Luhmann, Lejla Vajzovic, Anupama Horne, Stefanie G Schuman, Cynthia A Toth, Scott W Cousins, Eleonora M Lad
PURPOSE: To evaluate and quantify visual function metrics to be used as endpoints of age-related macular degeneration (AMD) stages and visual acuity (VA) loss in patients with early and intermediate AMD. DESIGN: Cross-sectional analysis of baseline data from a prospective study. METHODS: One hundred and one patients were enrolled at Duke Eye Center: 80 patients with early AMD (Age-Related Eye Disease Study [AREDS] stage 2 [n = 33] and intermediate stage 3 [n = 47]) and 21 age-matched, normal controls...
May 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29474223/inverted-internal-limiting-membrane-flap-technique-for-optic-disk-pit-maculopathy-morphologic-and-functional-analysis
#18
Giancarlo Sborgia, Nicola Recchimurzo, Luigi Sborgia, Alfredo Niro, Alessandra Sborgia, Marina Piepoli, Giovanni Alessio
PURPOSE: To analyze morphologic and functional changes after inverted internal limiting membrane-flap technique for optic disk pit maculopathy using optical coherence tomography, multifocal electroretinography, and microperimetry. METHODS: One case report. RESULTS: A 30-year-old woman presented us with decreased visual acuity (20/63) in the left eye because of retinoschisis and serous macular detachment associated with optic disk pit. Optical coherence tomography did not localize the source of intraretinal and subretinal fluid...
February 22, 2018: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29430338/test-retest-reproducibility-of-the-microperimeter-mp3-with-fundus-image-tracking-in-healthy-subjects-and-patients-with-macular-disease
#19
Stefan Palkovits, Nino Hirnschall, Stefan Georgiev, Christoph Leisser, Oliver Findl
Purpose: To evaluate the test-retest reproducibility of a novel microperimeter with fundus image tracking (MP3, Nidek Co, Japan) in healthy subjects and patients with macular disease. Methods: Ten healthy subjects and 20 patients suffering from range of macular diseases were included. After training measurements, two additional microperimetry measurements were scheduled. Test-retest reproducibility was assessed for mean retinal sensitivity, pointwise sensitivity, and deep scotoma size using the coefficient of repeatability and Bland-Altman diagrams...
February 2018: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/29392319/nanosecond-laser-treatment-for-age-related-macular-degeneration-does-not-induce-focal-vision-loss-or-new-vessel-growth-in-the-retina
#20
Kirstan A Vessey, Tracy Ho, Andrew I Jobling, Samuel A Mills, Mai X Tran, Alice Brandli, Jackson Lam, Robyn H Guymer, Erica L Fletcher
Purpose: Subthreshold, nanosecond pulsed laser treatment shows promise as a treatment for age-related macular degeneration (AMD); however, the safety profile needs to be robustly examined. The aim of this study was to investigate the effects of laser treatment in humans and mice. Methods: Patients with AMD were treated with nanosecond pulsed laser at subthreshold (no visible retinal effect) energy doses (0.15-0.45 mJ) and retinal sensitivity was assessed with microperimetry...
February 1, 2018: Investigative Ophthalmology & Visual Science
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