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. Author manuscript; available in PMC: 2017 Apr 1.
Published in final edited form as: Pain. 2016 Apr;157(4):868–878. doi: 10.1097/j.pain.0000000000000450

Fig. 1. Photosensitivity in fibromyalgia patients.

Fig. 1

Thresholds for (a) pressure-pain and (b) light-evoked discomfort and intolerance were determined in fibromyalgia patients and age-matched healthy controls. As would be expected based on the clinical presentation of this disorder, the fibromyalgia group exhibited a significantly lower threshold for pressure-evoked pain. They also reported light-evoked “discomfort” and “intolerance” at substantially lower levels than controls. (t-test compared to control, ***p < 0.001). Data presented as mean with 95% confidence limits.