Abstract: 
Medicinal plants have been used in many parts of the world for thousands of years as a common remedy for many human diseases. Herbal material continues to be used as a primary medicinal source in rural areas of developing countries. The eye is one of the most delicate organs of the body. Conjunctivitis, cataracts, glaucoma, ocular allergies, ocular inflammation, uveitis, etc. are the most common diseases of the eye. Because of the availability of novel formulation approaches a huge number of herbal drugs are used for the treatment of ocular diseases. Due to safety, efficacy, and lesser side effects herbal medicines gaining popularity and it is growing day by day. This review article discusses the barriers to ocular drug delivery and the challenges experienced in producing herbal medicines.

Keywords: Herbal, Ocular, Barriers, Ophthalmic.