Monocular and binocular smooth pursuit in central field loss. 2017

Natela Shanidze, and Stephen Heinen, and Preeti Verghese
Smith-Kettlewell Eye Research Institute, San Francisco, CA, USA. Electronic address: natela@ski.org.

Macular degeneration results in heterogeneous central field loss (CFL) and often has asymmetrical effects in the two eyes. As such, it is not clear to what degree the movements of the two eyes are coordinated. To address this issue, we examined smooth pursuit quantitatively in CFL participants during binocular viewing and compared it to the monocular viewing case. We also examined coordination of the two eyes during smooth pursuit and how this coordination was affected by interocular ratios of acuity and contrast, as well as CFL-specific interocular differences, such as scotoma sizes and degree of binocular overlap. We hypothesized that the coordination of eye movements would depend on the binocularity of the two eyes. To test our hypotheses, we used a modified step-ramp paradigm, and measured pursuit in both eyes while viewing was binocular, or monocular with the dominant or non-dominant eye. Data for CFL participants and age-matched controls were examined at the group, within-group, and individual levels. We found that CFL participants had a broader range of smooth pursuit gains and a significantly lower correlation between the two eyes, as compared to controls. Across both CFL and control groups, smooth pursuit gain and correlation between the eyes are best predicted by the ratio of contrast sensitivity between the eyes. For the subgroup of participants with measurable stereopsis, both smooth pursuit gain and correlation are best predicted by stereoacuity. Therefore, our results suggest that coordination between the eyes during smooth pursuit depends on binocular cooperation between the eyes.

UI MeSH Term Description Entries
D008268 Macular Degeneration Degenerative changes in the RETINA usually of older adults which results in a loss of vision in the center of the visual field (the MACULA LUTEA) because of damage to the retina. It occurs in dry and wet forms. Maculopathy,Maculopathy, Age-Related,Age-Related Macular Degeneration,Age-Related Maculopathies,Age-Related Maculopathy,Macular Degeneration, Age-Related,Macular Dystrophy,Maculopathies, Age-Related,Age Related Macular Degeneration,Age Related Maculopathies,Age Related Maculopathy,Age-Related Macular Degenerations,Degeneration, Macular,Dystrophy, Macular,Macular Degeneration, Age Related,Macular Degenerations,Macular Dystrophies,Maculopathies,Maculopathy, Age Related
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011698 Pursuit, Smooth Eye movements that are slow, continuous, and conjugate and occur when a fixed object is moved slowly. Pursuits, Smooth,Smooth Pursuit,Smooth Pursuits
D003867 Depth Perception Perception of three-dimensionality. Stereopsis,Stereoscopic Vision,Depth Perceptions,Perception, Depth,Perceptions, Depth,Stereopses,Stereoscopic Visions,Vision, Stereoscopic,Visions, Stereoscopic
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000369 Aged, 80 and over Persons 80 years of age and older. Oldest Old
D012607 Scotoma A localized defect in the visual field bordered by an area of normal vision. This occurs with a variety of EYE DISEASES (e.g., RETINAL DISEASES and GLAUCOMA); OPTIC NERVE DISEASES, and other conditions. Scotoma, Arcuate,Scotoma, Bjerrum,Scotoma, Central,Scotoma, Centrocecal,Scotoma, Altitudinal,Scotoma, Paracecal,Scotoma, Paracentral,Scotoma, Peripheral,Scotoma, Ring,Scotoma, Scintillating,Scotoma, Sector,Altitudinal Scotoma,Altitudinal Scotomas,Arcuate Scotoma,Arcuate Scotomas,Bjerrum Scotoma,Bjerrum Scotomas,Central Scotoma,Central Scotomas,Centrocecal Scotoma,Centrocecal Scotomas,Paracecal Scotoma,Paracecal Scotomas,Paracentral Scotoma,Paracentral Scotomas,Peripheral Scotoma,Peripheral Scotomas,Ring Scotoma,Ring Scotomas,Scintillating Scotoma,Scintillating Scotomas,Scotomas,Scotomas, Altitudinal,Scotomas, Arcuate,Scotomas, Bjerrum,Scotomas, Central,Scotomas, Centrocecal,Scotomas, Paracecal,Scotomas, Paracentral,Scotomas, Peripheral,Scotomas, Ring,Scotomas, Scintillating,Scotomas, Sector,Sector Scotoma,Sector Scotomas

Related Publications

Natela Shanidze, and Stephen Heinen, and Preeti Verghese
April 1990, Perceptual and motor skills,
Natela Shanidze, and Stephen Heinen, and Preeti Verghese
October 1981, Journal of the American Optometric Association,
Natela Shanidze, and Stephen Heinen, and Preeti Verghese
January 2018, Optometry and vision science : official publication of the American Academy of Optometry,
Natela Shanidze, and Stephen Heinen, and Preeti Verghese
November 1988, Annals of ophthalmology,
Natela Shanidze, and Stephen Heinen, and Preeti Verghese
October 1963, Perceptual and motor skills,
Natela Shanidze, and Stephen Heinen, and Preeti Verghese
January 2019, Journal of glaucoma,
Natela Shanidze, and Stephen Heinen, and Preeti Verghese
July 2000, Investigative ophthalmology & visual science,
Natela Shanidze, and Stephen Heinen, and Preeti Verghese
January 2012, European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery,
Natela Shanidze, and Stephen Heinen, and Preeti Verghese
June 1973, Journal of the Optical Society of America,
Natela Shanidze, and Stephen Heinen, and Preeti Verghese
November 2013, Nippon Ganka Gakkai zasshi,
Copied contents to your clipboard!