Search Results - "Barbur, John L."

Effects of post-saccadic oscillations on visual processing times by Llapashtica, Emsal, Sun, Tong, Grattan, Kenneth T V, Barbur, John L

“…Saccadic eye movements enable us to search for the target of interest in a crowded scene or, in the case of goal-directed saccades, to simply bring the image…”
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Effect of monocular sensitivity on binocular summation of luminance-modulated flicker by Reena Durai, C Vijay, Hathibelagal, Amithavikram R, Rodriguez-Carmona, Marisa, Barbur, John L, Bharadwaj, Shrikant R

“…Binocular summation of luminance contrast signals in the spatial domain has been investigated in many studies, but less attention has been paid to the…”
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Acuity and colour vision changes post intravitreal dexamethasone implant injection in patients with diabetic macular oedema by Abdel-Hay, Ahmed, Sivaprasad, Sobha, Subramanian, Ahalya, Barbur, John L

“…To evaluate changes in colour vision following intravitreal injection of Dexamethasone implant (Ozurdex) in patients with diabetic macular oedema (DMO). Both…”
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Age-related change in flicker thresholds with rod- and cone-enhanced stimuli by Hathibelagal, Amithavikram R, Bharadwaj, Shrikant R, Yadav, Anil R, Subramanian, Ahalya, Sadler, James R. E, Barbur, John L

“…Purpose Rod and cone photoreceptor-specific tests can be time-consuming. A new non-invasive test is described. The test is based on the measurement of flicker…”
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Cortical hyperexcitability and sensitivity to discomfort glare by Bargary, Gary, Furlan, Michele, Raynham, Peter J., Barbur, John L., Smith, Andrew T.

“…It is well established that there are two main aspects to glare, the visual impairment and the discomfort, known as disability and discomfort glare,…”
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Flicker Sensitivity in Normal Aging--Monocular Tests of Retinal Function at Photopic and Mesopic Light Levels by Bi, Wei, Gillespie-Gallery, Hanna, Binns, Alison, Barbur, John L

“…Aging can affect many aspects of visual performance. In general, the effects become more significant in those older than 40 to 50 years, with increased…”
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Evaluation of Retinal Structure and Visual Function in Blue Cone Monochromacy to Develop Clinical Endpoints for L-opsin Gene Therapy by Cideciyan, Artur V, Roman, Alejandro J, Warner, Raymond L, Sumaroka, Alexander, Wu, Vivian, Jiang, Yu Y, Swider, Malgorzata, Garafalo, Alexandra V, Viarbitskaya, Iryna, Russell, Robert C, Kohl, Susanne, Wissinger, Bernd, Ripamonti, Caterina, Barbur, John L, Bach, Michael, Carroll, Joseph, Morgan, Jessica I W, Aleman, Tomas S

“…L-cone opsin expression by gene therapy is a promising treatment for blue cone monochromacy (BCM) caused by congenital lack of long- and…”
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Understanding disability glare: light scatter and retinal illuminance as predictors of sensitivity to contrast by Patterson, Emily J, Bargary, Gary, Barbur, John L

“…The presence of a bright light in the visual field has two main effects on the retinal image: reduced contrast and increased retinal illuminance because of…”
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Exploring eye movements in patients with glaucoma when viewing a driving scene by Crabb, David P, Smith, Nicholas D, Rauscher, Franziska G, Chisholm, Catharine M, Barbur, John L, Edgar, David F, Garway-Heath, David F

“…Glaucoma is a progressive eye disease and a leading cause of visual disability. Automated assessment of the visual field determines the different stages in the…”
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Effects of higher-order aberrations on contrast acuity as a function of light level by Dalimier, Eugénie, Dainty, Chris, Barbur, John L.

“…The effects of higher-order ocular aberrations on functional visual performance were assessed for seven young healthy subjects, as a function of light level…”
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Detection of Early Loss of Color Vision in Age-Related Macular Degeneration - With Emphasis on Drusen and Reticular Pseudodrusen by Vemala, Roopa, Sivaprasad, Sobha, Barbur, John L

“…To evaluate chromatic sensitivity in patients with age-related macular degeneration (AMD) characterized by drusen and reticular pseudodrusen. To investigate…”
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Variation of chromatic sensitivity across the life span by Knoblauch, Kenneth, Vital-Durand, François, Barbur, John L

“…Thresholds were measured along three directions in color space for detecting an equiluminant color change of a set of bars embedded in a larger field of…”
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New methods for detection of early loss of rapid flicker, spatial vision, and chromatic sensitivity in glaucoma by Hafeez, Aiman, Barbur, John L., Ctori, Irene, Binns, Alison, Wong, Sui, Lim, Sheng

“…Purpose: To examine whether ocular hypertension and early glaucoma cause measurable changes in spatial vision, rapid flicker sensitivity and red/green and…”
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Effect of macular pigment optical density on Yellow‐Blue and Red‐Green colour discrimination by Rodriguez‐Carmona, Marisa, Barbur, John L.

“…The macular pigment (MP) absorbs preferentially short‐wavelength light and its narrow spectral absorption curve overlaps mostly the spectral responsivity…”
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Loss of colour vision in patients at risk of developing diabetes by Rodriguez‐Carmona, Marisa, Bastaki, Qais, Barbur, John L.

“…Recent studies carried out in diabetic patients with no more than moderate maculopathy revealed that over 70% had significant losses of both Yellow/Blue (YB)…”
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Colour‐related, binocular interactions in patients with dyschromatopsia by Barbur, John L., Petzold, Axel, Plant, Gordon T.

“…We report findings of monocular and binocular assessments of colour vision and thresholds for rod‐ and cone‐mediated sensitivity in two young patients (P1 and…”
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Transient Smartphone “Blindness” by Alim-Marvasti, Ali, Bi, Wei, Mahroo, Omar A, Barbur, John L, Plant, Gordon T

“…Two patients presented with loss of vision after viewing a smartphone screen in bed in the dark. The cause appeared to be differential bleaching of…”
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Cerebral achromatopsia by Rauscher, Franziska G., Barbur, John L., Plant, Gordon T.

“…Chromatic sensitivity was assessed in patients with pregeniculate and postgeniculate lesions. We examine changes in central vision along at foveal fixation and…”
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Age‐related normal limits for spatial vision by Keuken, Arjan, Subramanian, Ahalya, Mueller‐Schotte, Sigrid, Barbur, John L.

“…Purpose To establish age‐related, normal limits of monocular and binocular spatial vision under photopic and mesopic conditions. Methods Photopic and mesopic…”
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The value of assessing progressive loss of red/green and yellow/blue chromatic sensitivity in glaucoma by Rauscher, Franziska G., Edgar, David F., Chisholm, Catharine M., Barbur, John L.

“…*Correspondence: franziska.rauscher@medizin.uni‐leipzig.de The value of assessing progressive loss of red/green and yellow/blue chromatic sensitivity in…”
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