Glaucoma is an eye disorder in which the optic nerve suffers damage, permanently damaging vision in the affected eye(s) and progressing to complete blindness if untreated. It is often, but not always, associated with increased pressure of the fluid in the eye. In this book, the authors present topical research in the study of the aetiology, pathogenesis and treatments of glaucoma. Topics discussed in this compilation include medical treatment in chronic open-angle glaucoma; melatonin as a therapeutic resource for the management of glaucoma; ocular tissue changes and glaucoma treatment; secondary uveitic glaucoma; selective laser trabeculoplasty and parasurgical treatment of glaucoma.