Diploma in Ophthalmology is a postgraduate Medical Ophthalmology Course. Ophthalmology is the branch of medicine that deals with the anatomy, physiology and diseases of the eye. During the course, students learn the properties of light and geometric optics, including refraction and reflection. Here, they understand how light bends and reflects through the eye is key to understanding the principles of vision. Some of the topics covered include that how glasses and contact lenses can improve refraction and reflection problems in the human eye.The duration of the course is one year but it may be more or less then this depending on rules and regulations of different institutes.