No Changes In Visual Function

Erectile dysfunction, known also as impotence, affects millions of men around the world. Impotence is described as a condition in which, while a man’s libido is normal, he is not able to get an erection, or his erections are too soft and/or last too little. The most widely used treatment for erectile dysfunction is Generic Viagra, which also makes it the safest for someone who is considering such treatment. Estimations are that 24 million men have tried it since 1998. Once they have overcome the anxiety of not performing, men who formerly called themselves impotent, regain their self-esteem and their desire for sexual intimacy. These, in turn, enhance the quality of life.

As Viagra online is so popular, there have been many myths and false alarms around it and there still are. One of the most frightening of these myths is the going blind myth. This rumor resembles a lot an older one that used to frighten adolescents: masturbating can make you go blind.

When it comes to drugs, any alarm has to be looked into, for the safety of patients. This happened with Viagra in 2005, when a study came out claiming that sildenafil citrate, its active ingredient, can affect visual function, damage the retina and cause permanent loss of vision.

Sildenafil citrate works by inhibiting an enzyme that controls arterial relaxation in the penis. It has been proved that similar enzymes in other organs can also be affected. This is why sildenafil citrate is also used to cure pulmonary arterial hypertension and is in research for hypertension and preeclampsia in pregnant women as well as urinary tract symptoms. It was suspected that it could also affect an enzyme in the eye, but studies performed in 2005 showed that this was just another false alarm: taken as often as twice per week, for three months in a row, sildenafil citrate still caused no changes in visual function.

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