The man was diagnosed with lesions of the retina. Doctors can not cure the disease for several months.

Sildenafil is widely used to treat erectile dysfunction.. This is an active substance of drugs to increase potency, including Viagra, which is produced by Pfizer. Sildenafil inhibits the enzyme phosphodiesterase 6 (PDE-6): it is contained in retinal photoreceptors and plays a key role in visual phototransduction, during which light is converted into electrical signals. Reports health. mail. ru with reference to Retinal Cases.

Previously, men who took sildenafil turned to doctors with complaints of photophobia, photophobia, blurred vision and cyanopsy (when everything seems to be colored blue). But these symptoms were usually transient and disappeared within 24 hours..

The new case was not like the previous ones.. A 31-year-old man went to a New York hospital complaining that he has seen everything in red for the last two days.. Symptoms appeared after the patient drank a solution of sildenafil. He bought medicine through the Internet and could not tell which dose he used..

But, according to the patient, the dose was significantly higher than the recommended 50 milligrams per milliliter, which could be measured with a pipette. Shortly thereafter, he developed erythropia (he began to see everything in red), his contrast vision deteriorated and photopsia appeared (objectless images in the form of moving points, spots in sight). The photopsy disappeared the next day, but the rest of the symptoms persisted..

After examining the patient, doctors found that the retinal cells responsible for color vision were partially damaged.. A man was diagnosed with toxic retinopathy.. He was treated with prednisone for several days, but this did not work.. Over the next three months, erythropia failed.

yellmed. ru.

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