New Type of Perimetry Found Highly Accurate


■ Perimetry based on eye movement may be as accurate as standard perimetry in showing the presence, location, and extent of glaucoma defects, a recent study in the Journal of Glaucoma reports. Researchers from India and the Netherlands created a visual field probability plot based on saccadic reaction times, which they compared to standard automated perimetry using healthy subjects and glaucoma patients.

Then, 2 glaucoma specialists designated 52 standard automated perimetry and eye movement perimetry plots as either normal or abnormal and identified the defect location and pattern in 7 categories. The first specialist found a correlation between eye movement perimetry and standard automated perimetry 85% of the time, while the second doctor found matches between the 2 methods 92% of the time.