Life scientist and colleagues reported .

The start of NAION in these 7 patients within hour after ingestion of viagra may operation an tie-up between use of this broker and NAION. As patients with ED are more likely to have the microvascular risk factors typically associated with spontaneous NAION, an ischemic validness by sildenafil on the optic face is plausible, but unlikely. In normal adults, viagra increased pulsatile ocular pedigree flow, a issue of change of integrity the choroidal public exposure. Grunwald and coworkers did not find any significant vesture in the optic braveness rim, foveolar choroidal profligate flow, or retinal craft level after communicating with viagra. However, Pache and colleagues found that vardenafil caused significant enlargement of retinal arteries and veins in healthy individuals. One healthy youth char in another reflection had severe flushing, ache, and visual theater defects after ingestion of 200 mg of viagra, suggesting that the meaning on the optic courageousness is acutely and temporally related to ingestion of the therapy. Life scientist and colleagues reported the happening of a oscillation ischemic fire in a 50-year-old man 2 distance after he had ingested 50 mg of levitra. When the same case took 100 mg of sildenafil 6 days later, permanent neurologic deficits from an ischemic natural event developed.
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