This E-book provides the reader with a detailed up-to-date review of diagnostic technologies and their role in clinical practice. Chapters are dedicated specifically to describe the role of current technologies in the management of the leading causes of visual impairment such as age-related macular degeneration, diabetic retinopathy, glaucoma, vitreo-retinal disorders, cornea and anterior segment diseases. This E-book will help clinicians to understand and interpret diagnostic tests and critically appraise their performance and limitations. This book is intended for general ophthalmologists and clinicians with a special interest in retinal diseases, glaucoma, anterior segment and cornea. It will also be of interest and value to ophthalmologists in training, scientists, ophthalmic photographers and optometrists.