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


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.


CONCLUSIONS
SRT was prolonged in eyes with glaucoma across different eccentricities.
Deepmala
D
Mazumdar
J J M
JJ
Pel
Manish
M
Panday
Rashima
R
Asokan
L
L
Vijaya
B
B
Shantha
Sri Jadhavbhai Nathmal Singhvi Department of Glaucoma, Medical and Vision Research Foundation, Chennai, Tamil Nadu, India.
Ronnie
R
George
J
J
Van Der Steen
D000328:Adult; D000368:Aged; D005260:Female; D005901:Glaucoma / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011930:Reaction Time; D012438:Saccades / Q000502:physiology*; D014794:Visual Fields