Inclusion Criteria:  Accomplish the clinical characteristics included in the ICHD-III version for chronic migraine. Age between >18 to 65 year old (only women). Previous history of migraine as primary headache. Pain perception between 20 and 80 on a 0-100 VAS.  Exclusion Criteria:  Dementia, epilepsy, psychosis, mental retardation, pregnant and breastfeeding women. Visual problems