LifestyleGlaucoma - When the field of vision shrinksTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoLifestyle10/31/2013October 31, 2013Glaucoma usually occurs when pressure builds up in the inner eye and damages the optic nerve. Eye drops and other medications can be used to relieve that pressure. But if nothing else helps, sufferers need to have an operation.https://p.dw.com/p/1A9NlAdvertisement