In idiopathic headache (IH) sufferers, phenylephrine and fenfluramine induce a pupillary dilatation respectively greater and lesser than in controls. The difference may be due to a supersensitivity of the iris alpha adrenoceptors caused by a deficiency of noradrenaline in the iris adrenergic nerve terminal of the IH sufferer. These findings seem to support the hypothesis of a brain receptorial, monoamine supersensitivity in IH.
Female steroid hormones determine continuous gynaecological modifications from birth to senescence through puberty, pregnancy and menopause, and grant to the eye ophthalmological clinical, psychological and sexual valences that assimilate the visual apparatus to a gender organ. In spite of this, the aim is only to report the main effects of sexua-
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