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SYMPOSIUM - TRIP
Year : 2014  |  Volume : 62  |  Issue : 1  |  Page : 55-59

Comparison of saccadic reaction time between normal and glaucoma using an eye movement perimeter


1 Sri Jadhavbhai Nathmal Singhvi Department of Glaucoma, Medical and Vision Research Foundation, Chennai, Tamil Nadu; Elite School of Optometry, Chennai; Birla Institute of Technology and Science, Pilani, Rajasthan, India
2 Department of Neuroscience, Vestibular and Ocular Motor Research Group, Erasmus MC, Rotterdam, Netherlands
3 Sri Jadhavbhai Nathmal Singhvi Department of Glaucoma, Medical and Vision Research Foundation, Chennai, Tamil Nadu, India

Correspondence Address:
Ronnie George
Director-Research, Senior Consultant, Sri Jadhavbhai Nathmal Singhvi Department of Glaucoma, Medical and Vision Research Foundation, Sankara Nethralaya, 18, College Road, Chennai - 600 006, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0301-4738.126182

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Aim: To compare the saccadic reaction time (SRT) in both the central and peripheral visual field in normal and glaucomatous eyes using eye movement perimetery (EMP). Materials and Methods: Fifty-four normal and 25 glaucoma subjects underwent EMP and visual field testing on the Humphrey Field Analyser (HFA) 24-2 program. The EMP is based on infrared tracking of the corneal reflex. Fifty-four test locations corresponding to the locations on the 24-2 HFA program were tested. SRTs at different eccentricities and for different severities of glaucoma were compared between normal and glaucoma subjects. Results: Mean SRT was calculated for both normal and glaucoma subjects. Mann-Whitney U test showed statistically significant (P < 0.001) differences in SRT's between normal and glaucoma subjects in all zones. Conclusion: SRT was prolonged in eyes with glaucoma across different eccentricities.


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