The eye is a complex organ of the body. In ocular drug delivery, advantages include ease of administration and reduced frequency of administration for better patient acceptance. Opportunities for improving drug delivery application in case of anterior ocular diseases and posterior ocular diseases should be identified. In this review, new technology such as eye sol and cyclAsol and some nutrient transporters such as amino acid transporter, vitamin C transporter, glucose transporter and intraocular implants are described. In this review, authors also mentioned marketed products and future area of investigation for improved ocular drug delivery.