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Arch Ophthalmol. 2000;118:291-292.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Sildenafil citrate (Viagra) has been shown to be effective for erectile dysfunction and is well tolerated.¹ Headache and flushing are common side effects.¹ We describe the novel finding of ischemic optic neuropathy in a patient concomitant with his ingesting sildenafil.

Report of a Case

A 52-year-old healthy man with no known vasculopathic risk factors suffered from erectile dysfunction after transurethral resection for prostate cancer. He took his first dose of 50 mg of sildenafil citrate in the evening and, within 1 hour, sweating and a severe generalized headache developed. He saw blue "lightning bolts" and reported blurry vision in both eyes. This lasted 30 minutes, but the vision in the left eye remained blurred inferiorly. No erection occurred and he did not have sex. He tried the medication the next night with recurrence of the same symptoms. The blurry vision of the left eye did not change. He had Crohn disease and took methylphenidate . . . [Full Text of this Article]

Comment
Corresponding author: Robert Egan, MD, Casey Eye Institute, 3375 SW Terwilliger Blvd, Portand, OR 97201 (e-mail: eganr@OHSU.edu).

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