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

• Published in: Indian journal of ophthalmology 2014-01, Vol.62 (1), p.55-59
• Main Authors: Mazumdar, Deepmala, Pel, JJ, Panday, Manish, Asokan, Rashima, Vijaya, L, Shantha, B, George, Ronnie, der Steen, J
• Format: Article
• Language: English
• Subjects: 2-ethylpyridine; Adult; Aged; Allograft; Antioxidants; apoptosis; ARPE-19 cells; astigmatism; autograft; cell-based therapy; cigarette smoke toxicant; corneal scars; corneoplastique; Diode laser; electromagnetic ration; Eye movement perimeter; Female; Glaucoma; Glaucoma - physiopathology; glutathione; Humans; Infant blindness; Intacs; iPhone; keratoconus; Lasik; lens; limbal stem cell deficiency; limbal transplantation; limbus; Male; Middle Aged; middle-income countries; mitochondrial membrane potential; niche; nomogram; non-physician graders; oxidative stress; pattern laser; Physiological aspects; pinguecula; premium cataract surgery; pterygium; radial keratotomy; Reaction Time; reactive oxygen/nitrogen species; refractive complications; Retcam; retinal photocoagulation; retinopathy of prematurity (ROP); rural areas; Saccades (Eye movements); Saccades - physiology; saccadic reaction time; screening; smart phones; stem cells; subthreshold micropulse laser; Symposium - TRIP; tele-ophthalmology; tele-ROP; telemedicine; Testing; Visual Fields; wide-field digital imaging; yellow laser
• ISSN: 0301-4738; 1998-3689
• DOI: 10.4103/0301-4738.126182

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.