 Opaque specks may occur in the lens in glaucoma, known as glaukomflecken.Of the several causes for glaucoma, ocular hypertension (increased pressure within the eye) is the most important risk factor in most glaucomas, but in some populations, only 50% of people with primary open-angle glaucoma actually have elevated ocular pressure.Ocular hypertension—an intraocular pressure above the traditional threshold of 21 mm Hg or even above 24 mm Hg—is not necessarily a pathological condition but it increases the risk of developing glaucoma.