keyword
MENU ▼
Read by QxMD icon Read
search

Microperimetry

keyword
https://www.readbyqxmd.com/read/28740735/structure-and-function-relationship-of-activated-retinal-glia-in-primary-open-angle-glaucoma-patients
#1
Christoph Nützi, Andreas Schötzau, Matthias C Grieshaber
PURPOSE: To evaluate clinically activated retinal astrocytes and Müller cells (ARAM) regarding retinal sensitivity and retinal nerve fiber layer (RNFL) thickness in primary open-angle glaucoma (POAG). METHODS: Central visual field (VF; i.e., retinal sensitivity) was measured with a custom-made macular pattern by microperimetry and correlated with the presence (ARAM+) or absence (ARAM-) of ARAM on red-free fundus photography and with the corresponding RNFL by optical coherence tomography (OCT)...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28728183/early-focal-laser-photocoagulation-in-acute-central-serous-chorioretinopathy-a-prospective-randomized-study
#2
Vikas Ambiya, Mitali Khodani, Abhilash Goud, Raja Narayanan, Mudit Tyagi, Padmaja Kumari Rani, Jay Chhablani
BACKGROUND AND OBJECTIVE: To evaluate the role of early focal laser photocoagulation in acute central serous chorioretinopathy (CSC). PATIENTS AND METHODS: A total of 58 eyes with acute naïve CSC (less than 2 months' duration) with focal leak on fundus fluorescein angiography (FFA) were randomized into either a laser or a sham laser group. Eyes with chronic CSC and subfoveal leak were excluded. Visual acuity assessment, microperimetry, optical coherence tomography, and FFA were done at baseline, 1 month (minus FFA), 3 months, and 6 months after treatment...
July 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28724811/quantitative-physiological-measurements-to-evaluate-the-response-of-antivascular-endothelial-growth-factor-treatment-in-patients-with-neovascular-diseases
#3
REVIEW
In Hwan Hong, Sung Pyo Park
Antivascular endothelial growth factor (VEGF) treatment is still used intravitreally worldwide for various neovascular diseases, despite other available, approved treatments. We performed a systematic search of the literature focused on visual physiology studies. We used the online biomedical search engine PubMed and searched key words including "M-chart," "Preferential Hyperacuity Perimetry," "microperimetry," (MP) "electroretinography," and "contrast sensitivity" to estimate treatment efficacy of anti-VEGF treatments in a quantitative manner...
July 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28687219/diabetic-macular-edema-with-and-without-subfoveal-neuroretinal-detachment-two-different-morphological-and-functional-entities
#4
Stela Vujosevic, Tommaso Torresin, Marianna Berton, Silvia Bini, Enrica Convento, Edoardo Midena
PURPOSE: To assess specific morphologic and functional characteristics in eyes with diabetic macular edema (DME) with subfoveal neuroretinal detachment (SND+) vs DME without SND (SND-). DESIGN: Cross-sectional, prospective, comparative case series. METHODS: Seventy two patients (72 eyes: 22 eyes SND+ and 50 eyes SND-) with treatment-naïve, center-involving DME were evaluated. Data gathering included fundus color photographs, fluorescein angiography, spectral-domain optical coherence tomography (SD-OCT), best corrected visual acuity (BCVA), and microperimetry...
July 4, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28682947/interocular-asymmetry-in-choroidal-thickness-and-retinal-sensitivity-in-high-myopia
#5
Zeyad Alzaben, Genís Cardona, Miguel A Zapata, Ahmad Zaben
PURPOSE: To investigate the normal range of interocular asymmetry in choroidal thickness and retinal sensitivity in high myopia without ocular fundus manifestations and to determine the relationship between interocular asymmetry and refractive error. METHODS: Forty-three patients (35.07 ± 13.31 years) with high myopia and 45 healthy participants (39.9 ± 14.1 years) were administered an ocular coherence tomography and a microperimetry examination to determine choroidal thickness and retinal sensitivity at the foveal region and at 1, 2, and 3 mm, nasally, temporally, superiorly, and inferiorly...
July 6, 2017: Retina
https://www.readbyqxmd.com/read/28644178/temporal-thinning-in-sickle-cell-retinopathy-is-associated-with-diminished-perfusion-on-octa-and-dense-scotoma-on-microperimetery
#6
Kumar Sambhav, Sandeep Grover, Kakarla V Chalam
PURPOSE: To establish correlation between the structural compromise (capillary loss and hypoperfusion on optical coherence tomography [optical coherence tomography angiography]) with perimacular functional impairment noted on microperimetry. METHODS: Retrospective case series. Clinical records and multimodal imaging findings of patients presenting with sickle cell disease were reviewed. RESULTS: Three eyes of three patients (two men) were included in the study with a visual acuity of 20/20 and no sickle cell retinopathy...
June 20, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28609329/scotoma-characteristics-in-macular-telangiectasia-type-2-mactel-project-report-no-7-the-mactel-research-group
#7
Stela Vujosevic, Tjebo F C Heeren, Daniela Florea, Irene Leung, Daniel Pauleikhoff, Ferenc Sallo, Alan Bird, Tunde Peto
PURPOSE: To characterize scotomas in macular telangiectasia Type 2 (MacTel). METHODS: Five of the 27 centers performed microperimetry as part of the MacTel Natural History Observation Study. Data were analyzed in the Moorfields Eye Hospital Reading Centre. The number of stimuli under a threshold of 12, 10, 8, and <0 dB were counted (thresholding) and compared with one another. RESULTS: A total of 565 examinations were gradable, received from 632 eyes of 322 participants (age 61...
May 22, 2017: Retina
https://www.readbyqxmd.com/read/28593392/multimodal-imaging-and-functional-correlations-identify-unusual-cases-of-macular-retinal-pigment-epithelium-hypopigmentation-occurring-without-functional-loss
#8
E Boulanger-Scemama, J Akesbi, S Tick, S Mohand-Said, J-A Sahel, I Audo
PURPOSE: Patients with unusual macular retinal pigment epithelium (RPE) hypopigmentation are described and analyzed using retinal multimodal imaging. METHODS: We report three cases of patients with unilateral (2) or bilateral (1) macular lesions discovered incidentally on fundoscopy. A comprehensive ophthalmic examination including visual acuity, fundoscopy, spectral-domain optical coherence tomography (SD-OCT), short-wavelength light and near-infrared autofluorescence, fluorescein angiography, microperimetry, multifocal electroretinogram, adaptive optics (AO), and OCT-angiography (OCT-A) has been performed...
June 7, 2017: Documenta Ophthalmologica. Advances in Ophthalmology
https://www.readbyqxmd.com/read/28591286/structure-functional-correlation-using-adaptive-optics-oct-and-microperimetry-in-a-case-of-occult-macular-dystrophy
#9
Karlos Ítalo Viana, André Messias, Rubens Camargo Siqueira, Murilo W Rodrigues, Rodrigo Jorge
We report retinal functional and structural changes of a 40-year-old man diagnosed with occult macular dystrophy. Comprehensive ophthalmological evaluation was performed, followed by spectral-domain optical coherence tomography (SD-OC - Heidelberg) and image acquisition using an adaptive optics (AO) camera (RTX1, Imagine Eyes) for photoreceptor density analysis. Functional tests included full-field ERG (ERG) and multifocal electroretinography (mfERG) (Diagnosys, LLC) and microperimetry with scanning laser ophthalmoscope (SLO) fixation controlled (MAIA, CenterVUE)...
March 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28579742/intravitreal-use-of-bone-marrow-mononuclear-fraction-containing-cd34-stem-cells-in-patients-with-atrophic-age-related-macular-degeneration
#10
Carina Costa Cotrim, Luiza Toscano, André Messias, Rodrigo Jorge, Rubens Camargo Siqueira
PURPOSE: To evaluate the therapeutic potential and safety of intravitreal injections of bone marrow mononuclear fraction (BMMF) containing CD34(+) cells in patients with atrophic age-related macular degeneration (AMD). METHODS: Ten patients with atrophic AMD and best-corrected visual acuity (BCVA) in the worse-seeing eye of ≤20/100 were enrolled in this study. The bone marrow from all patients was aspirated and processed for mononuclear cell separation. A 0.1 mL suspension of BMMF CD34(+) cells was injected into the vitreous cavity of the worse-seeing eye...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28579549/the-use-of-microperimetry-in-assessing-visual-function-in-age-related-macular-degeneration
#11
REVIEW
Nicola K Cassels, John M Wild, Tom H Margrain, Victor Chong, Jennifer H Acton
Microperimetry is a novel technique for assessing visual function and appears particularly suitable for age-related macular degeneration (AMD). Compared to standard automated perimetry (SAP), microperimetry offers several unique features. It simultaneously images the fundus, incorporates an eye tracking system to correct the stimulus location for fixation loss, and identifies any preferred retinal loci. A systematic review of microperimetry in the assessment of visual function in AMD identified 680 articles...
June 1, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28573994/microperimetric-evaluation-in-patients-with-adult-onset-foveomacular-vitelliform-dystrophy
#12
Pier Luigi Grenga, Serena Fragiotta, Alessandro Cutini, Alessandro Meduri, Enzo Maria Vingolo
INTRODUCTION: To compare mean best-corrected visual acuity (BCVA), retinal sensitivity (RS), and bivariate contour ellipse area (BCEA) in patients with adult-onset foveomacular vitelliform dystrophy (AOFVD) and healthy subjects (HSs), reporting also functional disease-related changes in the different stages of the AOFVD disease. MATERIALS AND METHODS: In this observational cross-sectional study, a total of 19 patients (30 eyes; 12 female and 7 male) with AOFVD were enrolled, and 30 patients (30 eyes; 16 female and 14 male) were recruited as age-matched control group (74...
May 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28558370/genetic-polymorphisms-and-the-phenotypic-characterization-of-individuals-with-early-age-related-macular-degeneration
#13
Michael Oeverhaus, Verena Meyer Zu Westrup, Martha Dietzel, Hans-Werner Hense, Daniel Pauleikhoff
PURPOSE: While the importance of risk polymorphisms for the pathogenesis of age-related macular degeneration (AMD) is well established, their impact on morphological and functional phenotypes is largely unclear. We aimed to characterize individual phenotypes in patients who were either homozygous for a risk allele in the CFH gene, ARMS2 gene, or both as compared to non-carriers. METHODS: Patients with early AMD (n = 85) were assessed during a follow-up examination of a prospective study (MARS) with multimodal diagnostics including SD-OCT and microperimetry...
May 31, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28542693/macular-sensitivity-measured-with-microperimetry-in-stargardt-disease-in-the-progression-of-atrophy-secondary-to-stargardt-disease-progstar-study-report-no-7
#14
Etienne M Schönbach, Yulia Wolfson, Rupert W Strauss, Mohamed A Ibrahim, Xiangrong Kong, Beatriz Muñoz, David G Birch, Artur V Cideciyan, Gesa-Astrid Hahn, Muneeswar Nittala, Janet S Sunness, SriniVas R Sadda, Sheila K West, Hendrik P N Scholl
Importance: New outcome measures for treatment trials for Stargardt disease type 1 (STGD1) and other macular diseases are needed. Microperimetry allows mapping of light sensitivity of the macula and provides topographic information on visual function beyond visual acuity. Objective: To measure and analyze retinal light sensitivity of the macula in STGD1 using fundus-controlled perimetry (microperimetry). Design, Setting, and Participants: This was a multicenter prospective cohort study...
July 1, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28541963/correlation-of-structural-and-functional-outcome-measures-in-a-phase-one-trial-of-ciliary-neurotrophic-factor-in-type-2-idiopathic-macular-telangiectasia
#15
Ferenc B Sallo, Irene Leung, Traci E Clemons, Tunde Peto, Emily Y Chew, Daniel Pauleikhoff, Alan C Bird
PURPOSE: Macular telangiectasia Type 2 is a bilateral, progressive, potentially blinding retinal disease characterized by both vascular and neurodegenerative signs. Both the area of the break in the ellipsoid zone seen in "en face" optical coherence tomographic (OCT) images and microperimetric focal retinal sensitivity loss have been proposed as potential measures of progression in macular telangiectasia. The authors aimed to assess the characteristics and interrelationship of these structural and functional disease markers from the data collected in a phase one clinical trial of ciliary neurotrophic factor in macular telangiectasia...
May 23, 2017: Retina
https://www.readbyqxmd.com/read/28541959/longitudinal-correlation-of-ellipsoid-zone-loss-and-functional-loss-in-macular-telangiectasia-type-2
#16
Tjebo F C Heeren, Diána Kitka, Daniela Florea, Traci E Clemons, Emily Y Chew, Alan C Bird, Daniel Pauleikhoff, Peter Charbel Issa, Frank G Holz, Tunde Peto
PURPOSE: To compare ellipsoid zone (EZ) loss and functional loss in macular telangiectasia (MacTel) type 2 longitudinally. METHODS: Prospective natural history study. Ellipsoid zone loss was measured in en-face images created from spectral domain optical coherence tomography. Functional loss was assessed by best-corrected visual acuity and microperimetry, counting the number of test points with impaired function. RESULTS: A total of 56 eyes of 31 participants were followed for 4...
May 24, 2017: Retina
https://www.readbyqxmd.com/read/28538084/morphofunctional-evaluation-in-dome-shaped-macula-a-microperimetry-and-optical-coherence-tomography-study
#17
Elisabetta Pilotto, Francesca Guidolin, Mariacristina Parravano, Francesco Viola, Daniele De Geronimo, Enrica Convento, Laura dellʼArti, Elena Tabacchi, Raffaele Parrozzani, Fabiano Cavarzeran, Edoardo Midena
PURPOSE: To investigate retinal sensitivity (Se) in dome-shaped macula (DSM) using microperimetry and to correlate functional findings to specific spectral domain optical coherence tomography features. METHODS: Patients affected by DSM in at least 1 eye were consecutively enrolled in a prospective, cross-sectional study. All studied eyes performed best-corrected visual acuity measurement, microperimetry to assess Se and optical coherence tomography to investigate DSM pattern and to measure bulge height and retinal and choroidal thicknesses...
May 22, 2017: Retina
https://www.readbyqxmd.com/read/28536656/visual-rehabilitation-via-microperimetry-in-patients-with-geographic-atrophy-a-pilot-study
#18
Juan Abel Ramírez Estudillo, Mario Isaías León Higuera, Sergio Rojas Juárez, Maria de Lourdes Ordaz Vera, Yessica Pablo Santana, Benito Celis Suazo
BACKGROUND: Age-related macular degeneration (AMD) is the leading cause of blindness in the western world. As a consequence of AMD, patients develop structural damage that comprises the fovea and subsequently present loss of central vision, low visual acuity and unstable fixation. Contrary to what happens with anti-angiogenic treatment in neovascular AMD, there is currently no definitive treatment to reverse geographic atrophy progression. The aim of this study was to determine the effectiveness of the visual rehabilitation treatment via microperimetry in patients with geographic atrophy...
2017: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/28524928/properties-of-visual-field-defects-around-the-monocular-preferred-retinal-locus-in-age-related-macular-degeneration
#19
COMPARATIVE STUDY
Jonathan Denniss, Helen C Baggaley, Graham M Brown, Gary S Rubin, Andrew T Astle
Purpose: To compare microperimetric sensitivity around the monocular preferred retinal locus (mPRL) in age-related macular degeneration (AMD) to normative data, and to describe the characteristics of visual field defects around the mPRL in AMD. Methods: Participants with AMD (total n = 185) were either prospectively recruited (n = 135) or retrospectively reviewed from an existing database (n = 50). Participants underwent microperimetry using a test pattern (37 point, 5° radius) centered on their mPRL...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28495907/interdevice-comparison-of-retinal-sensitivity-assessments-in-a-healthy-population-the-centervue-maia-and-the-nidek-mp-3-microperimeters
#20
Siva Balasubramanian, Akihito Uji, Jianqin Lei, Swetha Velaga, Muneeswar Nittala, SriniVas Sadda
BACKGROUND: To compare and correlate the retinal sensitivity measurements obtained with Nidek Microperimetry-3 (MP-3) and the CenterVue Macular Integrity Assessment (MAIA) microperimeters among healthy subjects. METHODS: In this prospective comparative study, 31 eyes of 23 subjects underwent complete ophthalmological examination including retinal sensitivity assessments using two microperimeters, the MP-3 (Nidek Technologies) and the MAIA (CenterVue). The mean retinal sensitivity (dB) and its corresponding luminance (asb) and contrast (log units) were analysed between the two instruments...
May 11, 2017: British Journal of Ophthalmology
keyword
keyword
7944
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"