Abstract: A computer system displays a first object that includes at least a first portion of the first object and a second portion of the first object and detects a first gaze input that meets first criteria, wherein the first criteria require that the first gaze input is directed to the first portion of the first object in order for the first criteria to be met. In response, the computer system displays a first control element that corresponds to a first operation associated with the first object, wherein the first control element was not displayed prior to detecting that the first gaze input met the first criteria, and detects a first user input directed to the first control element. In response to detecting the first user input directed to the first control element, the computer system performs the first operation with respect to the first object.

Abstract: The invention relates to dynamic expert systems to provide a patient with at least one recommendation on performing an aesthetic improvement procedure. The system includes a database with actual case studies and aesthetic improvement procedures. The system also includes software adapted to allow a user to query the database based on a patient's desired aesthetic improvement and the results of at least one diagnostic test performed on the patient. The aesthetic improvement procedure is performed and the results of at least one diagnostic test performed after the procedure are analyzed and added to the database of case studies substantially immediately after analysis. The system may also include software adapted to allow a user to query the database based on a patient's desired aesthetic improvement.