This book describes the different investigative tools in ophthalmology, their output, and how to interpret those findings with maximum possible images. It will help the students appearing in examination as well as the general practitioners to interpret the various investigative tools in ophthalmology and arrive at a diagnosis. The section on instruments will help in appearing for viva-voce examination. The section on basic topics like ocular radiology, ocular microbiology, ocular pathology, and community ophthalmology will help students appearing in various postgraduate examinations.