A discussion of the many different techniques that are available for the examination of the visual field, including kinetic, suprathreshold and threshold, highlighting their advantages and disadvantages. It also describes many of the current visual field instruments, detailing their test strategies and techniques for analysing perimetric results. The text includes a comprehensive chapter on how the visual field is affected by parameters such as refractive errors and pupil size, with many useful tips on how these can be controlled. Pathologies that affect the visual field are discussed with special chapters devoted to glaucoma and the screening for glaucomatous loss.