Health

Viagra can lead to blindness


This could be due to increased blood flow to the genitals, which can interfere with blood supply to the eyes, the researchers say.

The team also named other impotence drugs – Cialis, Levitra and Spedra – as potential triggers for eye problems.

The study, published in the journal JAMA Ophthalmology, revealed that regular users of impotence drugs were 85 percent more likely to develop serious vision-threatening conditions.

“These are rare conditions, and the risk of developing the disease remains very low for any individual user. However, the sheer number of prescriptions dispensed each month in the US – around 20 million – has meaning a large number of people could be affected.” Study leader, Dr Mahyar Etminan, an ophthalmologist at varsity, was quoted as saying.

“Users who regularly notice any change in their vision should take it seriously and seek medical attention,” he recommends.

For the study, the team analyzed the claims records of 213,033 men using ED drugs: 123,347 men taking sildenafil – Pfizer’s brand of Viagra; 78,609 men taking tadalafil (Cialis); The report said 6,604 used vardenafil (Levitra) and 4,473 used avanfil (Spedra).

The team tracked claim records between 2006 and 2020 to see which ones went on to develop eye conditions. None of the men suffered from eye problems in the year before they became regular users of the drug.

They found that regular intake of one of the drugs was associated with a 158% increased risk of severe retinal detachment. It occurs when a collection of fluid builds up behind the eye and causes the sudden appearance of spots in vision and flashes of light.

The men had a 102% higher risk of ischemic optic neuropathy – the blood supply to the optic nerve is compromised. This condition causes loss of central vision. And they had a 44% higher risk of developing retinal vascular occlusion, a form of blood clot in the retina. The report says people with the condition experience a sudden loss of vision and black spots or ‘floaters’ in their vision.

Source: IANS



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