Most people know that high eye pressure is a major risk factor for glaucoma. Doctors have long suspected that blood flow to the optic nerve matters too, but solid population evidence has been harder to find. A large study from the UK adds a new piece to that puzzle, using an unexpected marker: treatment for erectile dysfunction (ED).
Why ED?
ED is widely recognized as a vascular condition, often reflecting the health of small blood vessels. Researchers led by Ruolan Fan of University College London used ED medication prescriptions as a way to study whether vascular problems in men are linked to primary open-angle glaucoma (POAG), the most common type.
How the study worked
The team used two large UK primary care databases. More than 200,000 people diagnosed with glaucoma were matched by age and primary care practice to more than 876,000 people without glaucoma. The average ages were 69 and 68.
What they found
- ED medications had been prescribed to 20% of the glaucoma group compared with 17% of the comparison group.
- ED medication use was associated with a 17% to 29% higher risk of a later POAG diagnosis, depending on the database.
- Older age and Black or Asian ethnicity were consistently associated with higher glaucoma risk.
- High blood pressure, diabetes, asthma, migraine, and sickle cell disease were also linked to higher risk, while heart attack and angina were linked to lower risk.
The drug probably isn’t the cause
Because ED medications are taken on demand rather than daily, and because the link appeared alongside other vascular conditions, the researchers concluded the association most likely reflects shared blood vessel problems rather than a direct effect of the drugs. They noted that experimental studies are still needed to confirm this. As senior author Christopher Owen, PhD, said, the findings strengthen the case that vascular health, not just eye pressure, matters in glaucoma.
What men over 50 should take from this
- Do not stop a prescribed medication because of this study; talk with your doctor about any concerns.
- If you have ED, high blood pressure, diabetes, or migraine, make regular eye exams part of your health routine.
- Tell your eye doctor about your full medical history and medication list.
- Glaucoma usually has no early symptoms, so screening is the only way to catch it early.
Our role
Khanna Vision Institute provides glaucoma screening, diagnosis, and treatment for Thousand Oaks, Newbury Park, and the greater Conejo Valley at our Westlake Village office.
Some glaucoma patients now check their eye pressure at home; Oak Park Lasik looks at what patients and doctors think of it.
Source: A vascular link: erectile dysfunction may signal glaucoma risk in men (Ophthalmology Times Europe, 10/23/2026). This article is an educational summary written by Khanna Vision Institute and is not a substitute for medical advice.