A branch of surgery and medicine that involves the diagnosis and treatment of eye disorders and diseases is known as ophthalmology. There are many changes in the eye and its surrounding areas due to various disorders and diseases, and aging. It branches into various sub-specialties like ocular oncology, ophthalmic pathology, pediatric ophthalmology, etc. These specialties are classified according to the disease or diseases of certain parts of the eye. Some of the common eye diseases are cataract, diabetic retinopathy, macular degeneration and glaucoma, among others. Optical coherence tomography, ultrasonography and fluorescein angiography are some of the tests used for diagnosing eye diseases. This book contains some path-breaking studies in the field of ophthalmology. It includes some of the vital pieces of work being conducted across the world, on various topics related to this field of study. This book is meant for students who are looking for an elaborate reference text on ophthalmology.