A 38-year-old woman with Ménière's disease and primary open angle glaucoma was reported. In this case, the vertigo attacks were always accompanied by glaucoma attacks and/or intraocular hypertension. Dehydration tests, i. e., the glycerol test and the furosemide test were positive, and after the tests, the intraocular hypertension was alleviated. The patient has been well controlled by acetazolamide.