Particles, compositions, and methods that aid
particle transport in
mucus are provided. The particles, compositions, and methods may be used, in some instances, for ophthalmic and / or other applications. In some embodiments, the compositions and methods may involve modifying the surface coatings of particles, such as particles of pharmaceutical agents that have a low
aqueous solubility. Such compositions and methods can be used to achieve efficient transport of particles of pharmaceutical agents though
mucus barriers in the body for a wide spectrum of applications, including
drug delivery, imaging, and diagnostic applications. In certain embodiments, a pharmaceutical composition including such particles is well-suited for ophthalmic applications, and may be used for delivering pharmaceutical agents to the front of the eye and / or the back of the eye.