Open angle glaucoma?,”More common in African Americans, and has increased prevalence in those with a family history of glaucoma and diabetes. There is gradual loss of peripheral vision over a period of years, and eventual tunnel vision. Beta-blockers such as Timolol eye drops are effective in the initial management of the patient. Laser trabeculoplasty is used as an adjunctive measure. If there is a continuous increase in intraocular pressure
surgical trabeculectomy is done.”