The individual chapters of the book systematically convey the fundamentals of viscoelastic substances, present new original measurement results of their rheological properties, and highlight the resulting application possibilities in ophthalmic surgery. Special emphasis is placed on a practical, illustrative, and understandable presentation of the physicochemical properties of viscoelastics to enable a critical selection and targeted application of the substances. A detailed special section focuses on the diverse applications and current trends in viscous surgery. Complications related to viscoelastics and suction techniques are covered, as well as knowledge about the production of the substances. Numerous illustrations and tabular overviews, an index, and further literature allow for comprehensive understanding.