Clinical Research Directory

Inclusion Criteria: * any child undergoing an eye exam under anesthesia for an ophthalmologic reason. * children between the ages newborn to 8 years of age. Exclusion Criteria: * children who are not having an eye exam under anesthesia. * children with a known medical diagnosis that affect the eye to be studied * \* children over the age of 8 years of age. * \* children with altered cerebral autoregulation, increased intracranial pressure, pulmonary hypertension, or any other condition deemed appropriate by the anesthesiologist. * children in whom a laryngeal mask airway will not be used