A small number of men have lost eyesight in one eye some time after taking Viagra, Cialis, or Levitra. This type of vision loss is called non-arteritic anterior ischemic optic neuropathy (NAION). NAION causes a sudden loss of eyesight because blood flow is blocked to the optic nerve.

We do not know at this time if Viagra, Cialis, or Levitra causes NAION. NAION also happens in men who do not take these medicines. People who have a higher

Doctor's No Pills Cure Advice Sexual Health Solutions

FDA has approved new labels for Viagra, Cialis, and Levitra to include information on possible eyesight loss (NAION).Stop using Viagra, Cialis, or Levitra if you have a loss in your eyesight. Get medical help right away.

Pfizer News Release: Viagra Does Not Raise Blindness Risk

Pfizer staff have reviewed all reports of eye-related events since the drug has been on the market, according to a news release from the pharmaceutical company.

"There is no evidence that Viagra causes blindness or any other serious ocular condition," says Joseph Feczko, MD, in the news release. Feczko is Pfizer's chief medical officer.

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