People who take medications to control high blood pressure at bedtime or in excessive amounts may be at increased risk for an eye disorder known as anterior ischemic optic neuropathy
(AION) or stroke of the eye.
Waybright EA, Selhorst JB, Combs J: Anterior ischemic optic neuropathy
with internal carotid artery occlusion.
Optic nerve diseases considered eligible include glaucoma, ischemic optic neuropathy
, optic atrophy, optic neuritis, LHON, NMO (Neuromyelitis Optica or Devic's Syndrome ) and some trauma.
Other associations include Horner's syndrome from absence of ipsilateral ICA, (10) ischemic optic neuropathy
, (11) and spasmodic torticollis secondary to a dilated vertebral artery related to agenesis of the ICA.
The disorder, known as nonarteritic anterior ischemic optic neuropathy
, is characterized by sudden loss of vision due to a painless swelling of the optic disc, a region at the back of the eye where the retina and the optic nerve join.
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2,3) Posterior segment manifestations include central serous retinopathy, uveitis, choroiditis, exudative retinal detachment, ischemic optic neuropathy
, neuroretinitis, and vasculitis.
As with other PDE5 inhibitors, the use of tadalafil is contraindicated in patients who are taking nitrates, for those who have cardiac disease in whom sexual activity is not advisable, and for those patients with non-arteritic anterior ischemic optic neuropathy
This type of blindness is called NAION, or non-arteritic anterior ischemic optic neuropathy
and can appear in men who are diabetic or have heart disease.
Right now, we haven't been able to determine what Pfizer knew about the relationship between ischemic optic neuropathy
and Viagra use.
The type of blindness involved is called Naion, or non-arteritic anterior ischemic optic neuropathy
A handful of men have developed nonarteritic ischemic optic neuropathy
after taking Viagra, according to researchers at the University of Minnesota, Minneapolis, who spoke with the BBC and other online media.