Calcium channel blockers: their use in normal tension glaucoma.

The treatment of normal tension glaucoma can be difficult. Some normal tension glaucoma patients show progression of glaucomatous optic neuropathy despite an intraocular pressure in the normal range, and sometimes even with an intraocular pressure in the low teens. The question therefore arises as to whether there are other therapeutic options besides lowering the intraocular pressure. One treatment modality discussed in the literature is calcium channel blockers. We suspect that calcium channel blockers are particularly useful in glaucoma patients having a primary vascular dysregulation. [ABSTRACT FROM AUTHOR]