Chong-Bin Tsai1,2, Wei-Yu Hung3, Wei-Yen Hsu3,4,5. 1. Department of Ophthalmology, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi 62102, Taiwan. 2. Department of Optometry, College of Medical and Health Science, Asia University, Taichung 41354, Taiwan. 3. Department of Information Management, National Chung Cheng University, Chiayi 62102, Taiwan. 4. Center for Innovative Research on Aging Society, National Chung Cheng University, Chiayi 62102, Taiwan. 5. Advanced Institute of Manufacturing with High-tech Innovations, National Chung Cheng University, Chiayi 62102, Taiwan.
Abstract
Optokinetic nystagmus (OKN) is an involuntary eye movement induced by motion of a large proportion of the visual field. It consists of a "slow phase (SP)" with eye movements in the same direction as the movement of the pattern and a "fast phase (FP)" with saccadic eye movements in the opposite direction. Study of OKN can reveal valuable information in ophthalmology, neurology and psychology. However, the current commercially available high-resolution and research-grade eye tracker is usually expensive. Methods & Results: We developed a novel fast and effective system combined with a low-cost eye tracking device to accurately quantitatively measure OKN eye movement. Conclusions: The experimental results indicate that the proposed method achieves fast and promising results in comparisons with several traditional approaches.
Optokinetic nystagmus (OKN) is an involuntary eye movement induced by motion of a large proportion of the visual field. It consists of a "slow phase (SP)" with eye movements in the same direction as the movement of the pattern and a "fast phase (FP)" with saccadic eye movements in the opposite direction. Study of OKN can reveal valuable information in ophthalmology, neurology and psychology. However, the current commercially available high-resolution and research-grade eye tracker is usually expensive. Methods & Results: We developed a novel fast and effective system combined with a low-cost eye tracking device to accurately quantitatively measure OKN eye movement. Conclusions: The experimental results indicate that the proposed method achieves fast and promising results in comparisons with several traditional approaches.
Authors: Giulio Pasquariello; Mario Cesarelli; Maria Romano; Antonio La Gatta; Paolo Bifulco; Antonio Fratini Journal: Comput Methods Programs Biomed Date: 2010-03-31 Impact factor: 5.428