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Perimetry

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https://www.readbyqxmd.com/read/29785984/residency-evaluation-and-adherence-design-study-iii-ophthalmology-residency-training-in-india-then-and-now-improving-with-time
#1
Partha Biswas, Parikshit Madhav Gogate, Quresh Badr Maskati, Sundaram Natarajan, Lalit Verma, Payal K Bansal
Purpose: To gauge the differences in ophthalmology residency training, academic, clinical and surgical, in the last three decades of the 20th century and the first decade of the 21st century. Methods: A survey was conducted by the Academic and Research Committee of the All India Ophthalmological Society, in 2014-2016, using a prevalidated questionnaire, which was circulated to ophthalmologists to gauge the practicality of the teaching protocols of clinical and surgical skills during postgraduate residency program...
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29780957/optic-nerve-compression-as-a-late-complication-of-a-hydrogel-explant-with-silicone-encircling-band
#2
Niels Crama, Leo Kluijtmans, B Jeroen Klevering
Purpose: To present a complication of compressive optic neuropathy caused by a swollen hydrogel explant and posteriorly displaced silicone encircling band. Observations: A 72-year-old female patient presented with progressive visual loss and a tilted optic disc. Her medical history included a retinal detachment in 1993 that was treated with a hydrogel explant under a solid silicone encircling band. Visual acuity had decreased from 6/10 to 6/20 and perimetry showed a scotoma in the temporal superior quadrant...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29774576/spatial-vision-in-older-adults-perceptual-changes-and-neural-bases
#3
REVIEW
Allison M McKendrick, Yu Man Chan, Bao N Nguyen
PURPOSE: The number of older adults is rapidly increasing internationally, leading to a significant increase in research on how healthy ageing impacts vision. Most clinical assessments of spatial vision involve simple detection (letter acuity, grating contrast sensitivity, perimetry). However, most natural visual environments are more spatially complicated, requiring contrast discrimination, and the delineation of object boundaries and contours, which are typically present on non-uniform backgrounds...
May 17, 2018: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/29771887/-new-visual-field-testing-possibilities-a-preliminary-report
#4
V P Erichev, A P Ermolaev, A A Antonov, G L Grigoryan, D V Kosova
There are currently no portable mobile perimeters that allow visual field testing outside ophthalmologist's examination rooms. PURPOSE: To develop a mobile perimetry technique based on use of a virtual reality headset (VR). MATERIAL AND METHODS: The study involved 26 patients (30 eyes) with II-III stage primary open-angle glaucoma (POAG) with compensated IOP. Perimetry was performed for each patient twice - on Humphrey analyzer (test 30-2, 76 points) and employing similar strategy on a perimeter integrated into VR headset (Total Vision, Russia)...
2018: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/29771751/utility-of-optical-coherence-tomography-in-the-evaluation-of-sellar-and-parasellar-mass-lesions
#5
Omar Al-Louzi, Sashank Prasad, Robert M Mallery
PURPOSE OF REVIEW: Anterior visual pathway compression is a common feature of sellar region masses. We review the visual pathway neuroanatomy pertaining to sellar and parasellar lesions and describe recent advances in optical coherence tomography (OCT) imaging that have provided a novel quantitative perspective in the evaluation and management of such patients. RECENT FINDINGS: Ultrastructural measurements of optic nerve integrity using OCT, namely peripapillary retinal nerve fiber layer (pRNFL) and the ganglion cell and inner plexiform layer (GCIPL) thicknesses, have been shown to correlate with visual acuity and visual field deficits on perimetry in patients with compressive sellar region masses...
May 15, 2018: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/29753019/psychophysical-and-neuroimaging-responses-to-moving-stimuli-in-a-patient-with-the-riddoch-phenomenon-due-to-bilateral-visual-cortex-lesions
#6
Michael J Arcaro, Lore Thaler, Derek J Quinlan, Simona Monaco, Sarah Khan, Kenneth F Valyear, Rainer Goebel, Gordon N Dutton, Melvyn A Goodale, Sabine Kastner, Jody C Culham
Patients with injury to early visual cortex or its inputs can display the Riddoch phenomenon: preserved awareness for moving but not stationary stimuli. We provide a detailed case report of a patient with the Riddoch phenomenon, MC. MC has extensive bilateral lesions to occipitotemporal cortex that include most early visual cortex and complete blindness in visual field perimetry testing with static targets. Nevertheless, she shows a remarkably robust preserved ability to perceive motion, enabling her to navigate through cluttered environments and perform actions like catching moving balls...
May 9, 2018: Neuropsychologia
https://www.readbyqxmd.com/read/29750715/visual-field-tests-for-glaucoma-patients-with-initial-macular-damage-comparison-between-frequency-doubling-technology-and-standard-automated-perimetry-using-24-2-or-10-2-visual-fields
#7
Hae-Young Lopilly Park, Jiyoung Lee, Chan Kee Park
PURPOSE: To compare standard automated perimetry (SAP) and frequency-doubling technology (FDT) perimetry for detecting macular damage in glaucoma. METHODS: One-hundred-twelve glaucomatous eyes with localized retinal nerve fiber layer (RNFL) defects on red-free photographs and corresponding macular ganglion cell/inner plexiform layer (mGC/IPL) thinning on the deviation map of macular optical coherence tomography (OCT), and thirty-five healthy eyes were enrolled in the study...
May 10, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29750122/analysis-of-visual-field-defects-obtained-with-semiautomated-kinetic-perimetry-in-patients-with-leber-hereditary-optic-neuropathy
#8
Katarzyna Nowomiejska, Agnieszka Kiszka, Edyta Koman-Wierdak, Katarzyna Tonska, Ryszard Maciejewski, Anselm G Jünemann, Robert Rejdak
Purpose: To analyse visual field (VF) defects obtained using semiautomated kinetic perimetry (SKP) in patients suffering from Leber hereditary optic neuropathy (LHON). Methods: Twenty-two eyes of eleven consecutive LHON male patients with confirmed mitochondrial 11778G>A DNA mutation were prospectively examined with the V4e stimulus of SKP in both eyes. The mean time after the onset of LHON was one year. The area of obtained isopters was measured in square degrees (deg2 )...
2018: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29744359/metamorphopsia-score-and-central-visual-field-outcomes-in-diabetic-cystoid-macular-edema
#9
Agnieszka Kalinowska, Katarzyna Nowomiejska, Agnieszka Brzozowska, Ryszard Maciejewski, Robert Rejdak
Aim: To detect abnormality of the visual function in naïve patients with cystoid diabetic macular edema (DME) using M-charts, Amsler test, and white on white (W/W) and blue on yellow (B/Y) perimetry. Methods: There were 64 eyes included in the study: 30 eyes with DME, 22 eyes with diabetes without DME, and 12 eyes of normal subjects. Conventional W/W perimetry and B/Y perimetry were performed within the central 10° of the visual field. To assess metamorphopsia, Amsler test and M-charts were used...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29739027/-uveitic-secondary-glaucoma
#10
Claudia Lommatzsch, Carsten Heinz
An intraocular pressure increase with development of glaucomatous damage is a common complication of uveitis. The prevalence has a wide range depending on various factors such as the underlying uveitis type and the duration of the disease. Pathogenetically, a distinction must be made between a secondary angle closure component and the more frequently occurring open-angle glaucoma. In diagnostics, in addition to the clinical optic nerve head assessment, perimetry and tonometry, the use of imaging examination equipment, such as OCT and HRT, are recommended...
May 2018: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29723304/associations-between-structure-and-function-are-different-in-healthy-and-glaucomatous-eyes
#11
Fang-I Chu, Iván Marín-Franch, Koosha Ramezani, Lyne Racette
PURPOSE: To assess if there are differences in the structure-function associations between healthy and glaucomatous eyes. METHODS: Structure-function associations were assessed in healthy and glaucomatous eyes in three datasets, globally and in the six sectors of the optic nerve head. Structural parameters included rim area (RA) and retinal nerve fiber layer thickness (RNFLT). Functional parameters included unweighted mean of sensitivity thresholds (MS) and unweighted mean of total deviation values (MD), assessed with standard automated perimetry, short-wavelength automated perimetry, frequency-doubling technology perimetry, or contrast sensitivity perimetry...
2018: PloS One
https://www.readbyqxmd.com/read/29713139/foveal-threshold-and-photoreceptor-integrity-for-prediction-of-visual-acuity-after-intravitreal-aflibercept-on-age-related-macular-degeneration
#12
Tsutomu Sakai, Sachiyo Okude, Hiroshi Tsuneoka
Purpose: To determine whether baseline foveal threshold and photoreceptor integrity can predict best-corrected visual acuity (BCVA) at 12 months after intravitreal aflibercept (IVA) therapy in eyes with neovascular age-related macular degeneration (AMD). Patients and methods: We evaluated 25 eyes of 25 patients with treatment-naïve neovascular AMD who received IVA once a month for 3 months, followed by once every 2 months for 8 months. BCVA, integrity of the external limiting membrane (ELM) or the ellipsoid zone (EZ) of the photoreceptors, and retinal sensitivity were determined before (baseline) and at 6 and 12 months after initial IVA...
2018: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29706619/microperimetry-and-optical-coherence-tomography-imaging-in-the-fellow-eye-of-patients-with-unilateral-focal-ischaemic-glaucoma
#13
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/29705057/patterns-of-progressive-ganglion-cell-inner-plexiform-layer-thinning-in-glaucoma-detected-by-oct
#14
Joong Won Shin, Kyung Rim Sung, Sun-Won Park
PURPOSE: To investigate the spatial characteristics and patterns of progressive macular ganglion cell-inner plexiform layer (GCIPL) thinning in glaucomatous eyes assessed by OCT Guided Progression Analysis (GPA). DESIGN: Longitudinal, retrospective, observational study. PARTICIPANTS: Two hundred ninety-two eyes of 192 patients with primary open-angle glaucoma with a mean follow-up of 6.0 years (range, 3.2-8.1 years) were included. METHODS: Macular GCIPL imaging and visual field (VF) examination were performed at 6-month intervals for 3 years or more...
April 25, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29704802/frequent-retinal-ganglion-cell-damage-after-acute-optic-neuritis
#15
Alexander U Brandt, Svenja Specovius, Timm Oberwahrenbrock, Hanna G Zimmermann, Friedemann Paul, Fiona Costello
BACKGROUND: To identify the extent of ganglion cell damage after first-time optic neuritis (ON) using the inter-ocular difference between affected and fellow eyes, and whether this approach is able to detect more patients suffering from ganglion cell damage than using absolute values. METHODS: Thirty-four patients with first-time unilateral ON were followed for a median 413 days. Patients underwent optical coherence tomography testing to determine ganglion cell plus inner plexiform layer thickness (GCIP)...
April 9, 2018: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29689026/optical-coherence-tomography-angiography-findings-in-patients-with-nonocular-beh%C3%A3-et-disease
#16
Karim A Raafat, Riham S H M Allam, Basma M Medhat
PURPOSE: To describe the optical coherence tomography angiography findings in nonocular Behçet disease. METHODS: The superficial capillary plexus (SCP) and deep capillary plexus (DCP) and outer retinal and choroidal flow were evaluated using optical coherence tomography angiography. Perimetry was performed to correlate any microvascular and functional changes. RESULTS: Capillary nonperfusion areas were found in the superficial capillary plexus in 16/20 eyes (80%) and in the DCP in 17/20 eyes (85%)...
April 23, 2018: Retina
https://www.readbyqxmd.com/read/29688089/central-scotoma-in-tobacco-alcohol-toxic-optic-neuropathy-measured-with-semi-automated-kinetic-perimetry
#17
Katarzyna Nowomiejska, Agnieszka Kiszka, Ryszard Maciejewski, Anselm Jünemann, Robert Rejdak
PURPOSE: To measure the area of central scotoma obtained with semi-automated kinetic perimetry (SKP) in patients suffering from tobacco-alcohol toxic neuropathy (TATN). METHODS: Twelve eyes of six patients with TATN were examined with SKP. Area of central scotoma was measured in square degrees (deg2 ). Additionally, static automated perimetry (SAP) within 60° was performed in each patient. RESULTS: Area of central scotoma was 41.8 deg2 for III4e isopter, 22...
April 24, 2018: Cutaneous and Ocular Toxicology
https://www.readbyqxmd.com/read/29678344/-variability-of-chloroquine-and-hydroxychloroquine-retinopathy-among-various-ethnicities
#18
A Giocanti-Aurégan, A Couturier, J-F Girmens, Y Le Mer, N Massamba, E Barreau, I Audo
INTRODUCTION: Current screening recommendations for chloroquine (CQ) and hydroxychloroquine (HCQ) retinopathy are based on central 10°C static perimetry and a high-resolution SD-OCT with a special attention to the inferior part of the macula where the toxicity usually starts by ellipsoid zone disruption. However, Melles and Marmor, have recently shown a great variability in the topography of the initial toxicity observed among various ethnicities, which is important to keep in mind so as not to miss early toxicity in certain subgroups of patients...
April 17, 2018: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29666954/clinical-characteristics-of-a-japanese-patient-with-bardet-biedl-syndrome-caused-by-bbs10-mutations
#19
Kentaro Kurata, Katsuhiro Hosono, Akiko Hikoya, Akihiko Kato, Hirotomo Saitsu, Shinsei Minoshima, Tsutomu Ogata, Yoshihiro Hotta
PURPOSE: Bardet-Biedl syndrome (BBS) is a rare autosomal recessive disorder characterized by retinal dystrophy, renal dysfunction, central obesity, mental impairment, polydactyly, and hypogonadism. Only limited information on BBS is available from Japanese patients. In addition, there are currently no reports of Japanese patients with BBS caused by BBS10 mutations. The purpose of this study was to present the characteristics of a Japanese patient with BBS caused by BBS10 mutations. PATIENT AND METHODS: The patient was a 22-year-old Japanese woman...
April 17, 2018: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29650469/expanding-the-traditional-role-of-optometry-current-practice-patterns-and-attitudes-to-enhanced-glaucoma-services-in-ireland
#20
Catriona Barrett, James Loughman
PURPOSE: To investigate current diagnostic equipment availability and usage for glaucoma case-finding within community optometric practice, and to explore optometrists' attitudes towards an enhanced scope of clinical practice. METHODS: An anonymous survey was developed, validated, and distributed to all optometrists in Ireland. RESULTS: 199 optometrists (27% of registrants) responded to the survey. 87% had access to the traditional triad of tests necessary to conduct adequate glaucoma case finding...
April 9, 2018: Journal of Optometry
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