Primary open angle glaucoma is the second and leading cause for visual damage worldwide. What is lost because of glaucomatous damage cannot be restored by any mean. Its early detection is the most important factor in prevention of such a damage. The current book will highlight the different aspect of glaucomatous damage including; functional visual field damage, morphological optic nerve head and retinal nerve fiber layer damage and changes of the blood flow in the optic nerve head and retinal nerve fiber layer in definite and suspected glaucoma patients and ocular hypertensives as well. The...