Michael Crossland | University College London (original) (raw)
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Papers by Michael Crossland
… ophthalmology & visual …, Jan 1, 2008
Visual Impairment …, Jan 1, 2007
Expectations and Perceived Benefits of a Hospital-Based Low Vision Clinic: Results of an Explorat... more Expectations and Perceived Benefits of a Hospital-Based Low Vision Clinic: Results of an Exploratory, Qualitative Research Study.
Optometry & Vision Science, Jan 1, 2002
To assess fixation stability in patients, a scanning laser ophthalmoscope (SLO) has typically bee... more To assess fixation stability in patients, a scanning laser ophthalmoscope (SLO) has typically been required. Disadvantages of this technique include the need for a fixed viewing distance and rigid head support. Some modern infrared eyetrackers do not have these constraints. The purpose of this study was to compare fixation stability measurements made with these instruments. Normal subjects were asked to fixate a 2.5 degrees high cross while fixation was measured with a SLO and an infrared eyetracker. Bivariate contour ellipse areas were calculated. There was a linear relationship between the bivariate contour ellipse areas measured using each instrument. Bivariate contour ellipse areas returned from the eyetracker were larger. There was no difference in test-retest variability between the instruments. The eyetracker indicates fixation to be less stable than the SLO does, perhaps because of eye movements to compensate for small head movements. Our eyetracker can be used to analyze fixation when viewing images at any distance, without the need for head immobilization. The eyetracker and the SLO complement each other in the investigation of visual behavior.
Behavioral …, Jan 1, 2008
International Congress Series, Jan 1, 2005
Visual Impairment …, Jan 1, 2007
Ophthalmic and Physiological Optics, Jan 1, 2006
Journal of …, Jan 1, 2009
British Journal of Ophthalmology, Jan 1, 2007
Investigative Ophthalmology & …, Jan 1, 2010
Page 1. 1 Fixation Stability Assessment: A comparison between the Nidek MP-1 and the 1 Rodenstock... more Page 1. 1 Fixation Stability Assessment: A comparison between the Nidek MP-1 and the 1 Rodenstock Scanning Laser Ophthalmoscope in people with and without 2 diabetic maculopathy. 3 4 Hannah MP Dunbar 1 , Michael D. Crossland 1,2 , Gary S. Rubin 1,2 ...
Optometry & Vision …, Jan 1, 2005
Close Window. Close Window. Thank you for choosing to subscribe to the eTOC for Optometry &am... more Close Window. Close Window. Thank you for choosing to subscribe to the eTOC for Optometry & Vision Science. Enter your Email address: Wolters Kluwer Health may email you for journal alerts and information, but is committed ...
Vision research, Jan 1, 2006
Investigative ophthalmology & visual science, Jan 1, 2009
Investigative Ophthalmology & …, Jan 1, 2010
British Medical Journal, Jan 1, 2007
Ophthalmology, Jan 1, 2005
… and Physiological Optics, Jan 1, 2004
Optometry in Practice, Jan 1, 2006
… ophthalmology & visual …, Jan 1, 2008
Visual Impairment …, Jan 1, 2007
Expectations and Perceived Benefits of a Hospital-Based Low Vision Clinic: Results of an Explorat... more Expectations and Perceived Benefits of a Hospital-Based Low Vision Clinic: Results of an Exploratory, Qualitative Research Study.
Optometry & Vision Science, Jan 1, 2002
To assess fixation stability in patients, a scanning laser ophthalmoscope (SLO) has typically bee... more To assess fixation stability in patients, a scanning laser ophthalmoscope (SLO) has typically been required. Disadvantages of this technique include the need for a fixed viewing distance and rigid head support. Some modern infrared eyetrackers do not have these constraints. The purpose of this study was to compare fixation stability measurements made with these instruments. Normal subjects were asked to fixate a 2.5 degrees high cross while fixation was measured with a SLO and an infrared eyetracker. Bivariate contour ellipse areas were calculated. There was a linear relationship between the bivariate contour ellipse areas measured using each instrument. Bivariate contour ellipse areas returned from the eyetracker were larger. There was no difference in test-retest variability between the instruments. The eyetracker indicates fixation to be less stable than the SLO does, perhaps because of eye movements to compensate for small head movements. Our eyetracker can be used to analyze fixation when viewing images at any distance, without the need for head immobilization. The eyetracker and the SLO complement each other in the investigation of visual behavior.
Behavioral …, Jan 1, 2008
International Congress Series, Jan 1, 2005
Visual Impairment …, Jan 1, 2007
Ophthalmic and Physiological Optics, Jan 1, 2006
Journal of …, Jan 1, 2009
British Journal of Ophthalmology, Jan 1, 2007
Investigative Ophthalmology & …, Jan 1, 2010
Page 1. 1 Fixation Stability Assessment: A comparison between the Nidek MP-1 and the 1 Rodenstock... more Page 1. 1 Fixation Stability Assessment: A comparison between the Nidek MP-1 and the 1 Rodenstock Scanning Laser Ophthalmoscope in people with and without 2 diabetic maculopathy. 3 4 Hannah MP Dunbar 1 , Michael D. Crossland 1,2 , Gary S. Rubin 1,2 ...
Optometry & Vision …, Jan 1, 2005
Close Window. Close Window. Thank you for choosing to subscribe to the eTOC for Optometry &am... more Close Window. Close Window. Thank you for choosing to subscribe to the eTOC for Optometry & Vision Science. Enter your Email address: Wolters Kluwer Health may email you for journal alerts and information, but is committed ...
Vision research, Jan 1, 2006
Investigative ophthalmology & visual science, Jan 1, 2009
Investigative Ophthalmology & …, Jan 1, 2010
British Medical Journal, Jan 1, 2007
Ophthalmology, Jan 1, 2005
… and Physiological Optics, Jan 1, 2004
Optometry in Practice, Jan 1, 2006