Does having high blood pressure put you at a greater risk of developing glaucoma?

This study examined the link between hypertension and glaucoma.  

Over 25% of adults worldwide suffer from hypertension (high blood pressure). Hypertension can cause harm to both the heart and the kidneys. Hypertension has also been associated with a greater risk of developing glaucoma (a disorder that damages the optic nerve, leading to vision loss and eventual blindness).

Open-angle glaucoma (OAG) is a type of glaucoma caused by blocked drainage vessels, which increases the pressure in the eye. The association between hypertension and OAG is not yet clear. While some studies have suggested that hypertension increases the risk of OAG, other studies have shown no association.  

The current analysis combined the results of previous studies to examine the link between hypertension and OAG. 16 studies including 60,084 patients were included in this analysis. 

Patients with hypertension were 22% more likely to develop OAG. The risk of developing OAG did not depend on age. 

Hypertension increased the odds of developing high-tension glaucoma (a form of OAG with higher eye pressure) by 92%. There was no association between hypertension and normal-tension glaucoma.

This analysis concluded that hypertension increases the risk of developing open-angle glaucoma.

A large study specifically aimed at examining the link between hypertension and open angle glaucoma is required. Examining several different studies can lead to errors in interpreting results. 

If you are concerned about developing glaucoma, please discuss your concerns with your doctor.