This book provides a useful, up-to-date resource for clinicians and surgeons wishing to be proficient in examining the anterior chamber angle of the eye and treating, medicinally and surgically, patients with the most common cause of permanent blindness. It includes a step-by-step guide to learn about the indications, principles, and techniques for performing Gonioscopy in the office and in the operating theater. It also highlights pathologies encountered in different acquired and congenital angle disorders. Furthermore, it discusses how to treat conditions related to the nature of the anterior chamber angle. Ophthalmology residents, glaucoma fellows, and glaucoma specialists as well as general ophthalmologists, optometrists, physician assistants and medical students interested in learning more about Gonioscopy, one of the most difficult ophthalmological examination techniques to perform, will find this book an indispensable resource in their clinical education.