Frequency doubling technology perimetry and standard automated perimetry in migraine.
The literature suggests that visual field defects may be more common in people who experience migraine. The Humphrey frequency doubling (FDT) visual field instrument selectively examines the magnocellular visual pathway, but has not previously been used to investigate visual function in migraine. In a masked controlled study we compared Humphrey FDT and Humphrey Swedish Interactive Threshold Algorithm fields of 25 migraine sufferers with 25 age- and gender-matched controls. Although both mean deviation and pattern standard deviation were a little worse in the migraine group, these differences did not reach statistical significance. There were no inter-eye visual field differences in the migraine group compared with controls. Comparing the mean of all the contrast thresholds in each hemisphere, there were no more inter-hemifield visual field differences in the migraine group compared with controls. There was no significant difference between the migraine and control groups in intra-ocular pressures. The visual field parameters were not correlated with the interval since the last migraine headache, the severity of migraine headache, the duration of migraine headache or the number of migraine headaches per annum. In our data, there was no evidence of visual field deficits, a magnocellular deficit, or indications of glaucomatous pathology.
Harle
Deacon E
DE
The Neville Chappell Research Clinic, The Institute of Optometry, Newington Causeway, London. dharle@ioo.org.uk
Evans
Bruce J W
BJ
D000293:Adolescent; D000328:Adult; D000465:Algorithms; D015350:Contrast Sensitivity / Q000502:physiology; D005260:Female; D005901:Glaucoma / Q000150:complications; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000150:complications / Q000503:physiopathology*; D012684:Sensory Thresholds / Q000502:physiology; D012720:Severity of Illness Index; D013997:Time Factors; D014785:Vision, Ocular / Q000502:physiology*; D058609:Visual Field Tests / Q000379:methods*; D014794:Visual Fields / Q000502:physiology