This volume is devoted to the recent advances in diagnostic ultrasound in ophthalmology. It provides an overview of the progress in clinical applications of the technique. There are chapters that focus on the optic nerve and extraocular muscles, orbital and periorbital lesions, intraocular tumors and intraocular disorders. In addition there are chapters that deal with the anterior segment, instrumentation, biometry and Doppler methods. The contributions prepared by a group of international experts in the field should be of interest to all those involved in ophthalmic echography.