Sildenafil is commonly used to treat erectile dysfunction and is generally regarded as safe with limited side effects. However, a recent study in Frontiers in Neurology has highlighted the risk of persistent visual side-effects, such as light sensitivity and color vision impairment, in men who have taken the highest recommended dose of Viagra. While these effects appear to be rare, the research suggests that first-time Viagra users should start with a lower dose before increasing it, if necessary.
* This article was originally published here
