Visual Impairment


Generics of Viagra are cheaper versions of branded Viagra. They are completely identical to the original drug in terms of their effect on the male body. This identity is achieved due to the fact that all Viagra generics contain the same active ingredient as the brand name drug, namely Sildenafil citrate. You can buy cheap generic Viagra without a prescription at any online pharmacy, while delivery even from foreign pharmacies in most cases takes no more than a week. You can really save a lot of money: branded Viagra costs several times more than its generic versions.

Despite all its advantages, Viagra generics have a number of disadvantages, which are also characteristic of the original medicine. Among them, there is a fairly wide group of side effects such as visual impairment. Up to 70% of men who take any form of Viagra and its generics complain about certain “special effects” concerning vision. Visual impairments that patients complain of range from photosensitivity and blurring of objects to color blindness and bluish tint of objects. Interestingly, in a number of men, symptoms continue long after the drug’s effect disappears. In some patients, side effects in terms of vision persist for up to three weeks.

How does Viagra affect the organs of vision, if this drug is intended to affect the male reproductive system? The fact is that Sildenafil increases blood flow to the penis by stopping the production of an enzyme called phosphodiesterase type 5, or PDE-5. The drug also mixes with the related enzyme PDE-6 in retinal cells. At high doses, this can lead to permanent damage of the retina.

Side effects in the field of the organs of vision are often manifested in men with various comorbidities. Sometimes Viagra is associated with the development of ischemic optic neuropathy – a sudden and permanent loss of vision caused by problems in the blood supply to the optic nerve. This is usually associated with high blood pressure or heart disease. Men with optic nerve abnormalities or retinitis pigmentosa are also at risk of vision problems when taking erectile dysfunction medications from the PDE-5 inhibitor group. In this regard, Viagra is prohibited for admission for patients with a history of episodes of ischemic neuropathy of the optic nerve, retinitis pigmentosa and some other hereditary retinal diseases.

In most cases, the effect of Viagra generics on vision is weaker than in the case of the original medicine. This is due to the generic manufacturers who make every effort to maximize the purification of the active ingredient. Typically, the “special effects’ go away on their own within about three to six hours after taking the medication.