Popular erectile dysfunction drug linked to eye disease that can cause irreversible vision loss

A drug used to treat erectile dysfunction and enlarged prostate symptoms may raise the risk of glaucoma, a serious eye condition that can cause gradual vision loss, according to new research. 

An international team of researchers analyzed health records from nearly 74,000 men ages 40 and older with lower urinary tract symptoms to examine whether long-term tadalafil use was associated with a greater risk of glaucoma. 

The study, published in the British Journal of Ophthalmology, compared...