Despite being linked to a rare eye disease, medical researchers rule Viagra does not increase the risk of blindness. Pfizer, Inc. says it is in talks with U.S. regulators about revising the label on the erectile dysfunction drug to reflect eye disease.

The eye condition is known as non-arteritic anterior ischemic optic neuropathy (NAION). The FDA concludes no causal relationship between Viagra and NAION has been established

The autopsy of Terry Schiavo shows she likley died of dehydration.

Doctors state low potassium levels are the main piece of evidence indicating Schiavo may have suffered from an eating disorder prior to her hospitalization

Two out of three Americans with type-2 diabetes do not have their disease under control and risk early deaths from stroke, heart attack or kidney failure as well as blindness and limb loss.

Diabetes management actually worsened in the past 10 years," Dr. Jaime Davidson, a diabetes expert at the University of Texas Southwestern Medical School in Dallas, told a news conference

U.S. researchers have found vision impairment in some patients who use Viagra (sildenafil) for erectile dysfunction. A new study in the Journal of Neuro-Opthamology describes seven people developing nonarteritic ischemic optic neuropath (NAION), an eye ailment that sometimes results in blindness. Including other studies, as many as fourteen people have been affected by NAION after using Viagra. Doctors say vision loss is among the most serious side effects exhibited by patients, but is rare. Most patients exhibit signs such a blurred vision within 24-hours. Researchers say all of the patients had additional risk factors, including her disease and high blood pressure. Many also had high cholesterol levels as well, while others had preexisting eye conditions. Researchers say it's still to soon to acknowledge a cause and effect relationship between sildenafil and NAION, but patients should be cautious