Indian Journal of Ophthalmology (Jan 2014)

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

  • Deepmala Mazumdar,
  • JJ M Pel,
  • Manish Panday,
  • Rashima Asokan,
  • L Vijaya,
  • B Shantha,
  • Ronnie George,
  • J van der Steen

DOI
https://doi.org/10.4103/0301-4738.126182
Journal volume & issue
Vol. 62, no. 1
pp. 55 – 59

Abstract

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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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