Vision Science and Optometry

Optical defects (myopia, hypermetropia, and astigmatism) and presbyopia, when insufficiently or inadequately corrected by spectacles, contact lenses or refractive surgery, are the most frequent causes of headache.

Ophthalmic migraine is a common clinical form of migraine where symptoms are primarily visual.

Ophthalmic migraine can be single or multiple and group together in more or less spaced crises spanning several days. The average crises frequency is 3 to 6 times a year.