This document summarizes a seminar presentation on using chitosan-based nanoparticles for ocular drug delivery. It begins with an introduction to chitosan and how it can be used to improve drug transport and retention time in the eye. It then discusses the anatomy of the eye and describes common nanoparticle preparation methods like ionic gelation and solvent displacement. Applications of chitosan nanoparticles for ocular delivery are also mentioned, such as increasing drug transport across the cornea. In conclusion, future areas of research like new preparation techniques and controlled release formulations are highlighted.