The Effect of Povidone-iodine Ophthalmic Surgical Prep Solution on Respiration in Children Undergoing Strabismus Surgery With General Anesthesia.

* Inclusion Criteria * Children between the ages of 1 year and 17 years * Scheduled for strabismus surgery * Anesthesia plan includes inhalational induction with sevoflurane and the use of a laryngeal mask airway (LMA) with spontaneous ventilation, per the attending anesthesiologist. Exclusion Criteria * History of an adverse reaction to iodine * History of any thyroid disease * Patients who require tracheal intubation, as determined by the attending anesthesiologist; e.g. craniofacial anomalies. * Patients with a contraindication to sevoflurane, such as malignant hyperthermia or severe left ventricular dysfunction. * Inability or unwillingness of the subject or legal guardian/ representative to give informed consent.