Dr. Rajib Mandal, Ph.D., is an accomplished optometry educator, researcher, and author with over 25 peer-reviewed publications and 25+ textbooks in optometry. Currently serving as Assistant Professor and Programme Coordinator at Assam down town University, he brings extensive expertise in clinical optometry, binocular vision, and vision therapy. A Postdoctoral Fellow at Eudoxia Research University, USA, Dr. Mandal is known for his contributions to curriculum development, clinical training, and translational research. His academic leadership and dedication to bridging systemic disease with ocular health make him a key contributor to this comprehensive academic guide.