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Ocular lymphatics: state-of-the-art review.

Research involving the lymphatic system has experienced an exponential progression during the past decade largely because of advancement of modern technology and discovery of several lymphatic specific molecules. The eye provides an excellent site for lymphatic studies due to its accessible location and the unique feature of tissue heterogeneity--while some tissues are lymphatic-rich, others are lymphatic-free or -inducible. This review provides an update on our current understanding of ocular lymphatics and possible associated eye diseases.