Abstract: In recent years, various new dosage forms of ocular drugs have been developed, such as nano preparations (including nanoparticles, nanospheres, nanoemulsions, nanosuspensions, nanoliposomes, nanomicelles, fluorescent nano and dendritic macromolecules, etc.), sustained-release gels (including temperature-sensitive, pH, ionic and self-assembled peptide hydrogels, etc.), contact lenses, implants, microneedles, etc., which effectively improve the bioavailability of ocular drug administration, patient compliance, and achieve continuous administration, reduce drug side effects, and reduce chronic damage to the eyes , improves the therapeutic effect of eye medication. (Int Rev Ophthalmol, 2023, 47: 210-217)

Key words: nanometre, gel, contact lens, implants, microneedling