As the name suggests the "HANDBOOK OF ABC OF OPTICS OF VISION" aims to provide the readers with the basic insight into OPTICS OF VISION in a user friendly and easy to follow manner, it focuses on topics comprehensively and in very lucid manner. It is suitable for undergraduate and post graduate aspirants of various streams of biological sciences. Also, it may serve as a last-minute revision book for the students and a quick reference for practicing physicians and scholars who are willing to have a quick brush up of the OPTICS OF VISION. The conceptual line diagrams have been incorporated to make the things more clear and interesting. The values for various variables have been approximated to the round figures so that the readers can remember the values easily.