A number of structures contribute to tear production and maintenance, including the tear system, the lids and the orbit. The ocular surface itself is also a part of the system, including the cornea and conjunctiva. This makes for a very complex situation that can easily lead to changes in tear film and the ocular surface that are called "dry eye." Here a team of experts carefully examine how and when surgery is indicated, addressing normal tear film, normal anatomy (including immunological interactions), classification and diagnosis, anti-inflammatory and immnunosup-pressive concepts, correction and drainage techniques, surgery of the conjunctiva and cornea, keratoprosthesis surgery, botulism toxin injections, mucous membrane grafting, and salivary gland transplantation along with other treatments. The collection closed with a set of scientific studies. The color and monochrome clinical photographs and line illustrations are especially well-chosen and informative.