The Application of Lidocaine Cream on Oral Secretions of LMA Removal During the Recovery Period in Ophthalmic Surgical Patients Under General Anesthesia

Inclusion Criteria: * Aged 18 to 60 years; * With American Society of Anesthesiologists (ASA) physical status I or II; * Scheduled to undergo ophthalmic surgery following general anesthesia with LMA. Exclusion Criteria: * Contraindications to LMA use; * A history of upper respiratory tract infection within one week prior to surgery; * Persistent pharyngeal symptoms (eg. throat irritation, dryness, or chronic cough, etc.) lasting ≥ 3 months; * Severe gastroesophageal reflux disease; * Morbid obesity, defined as a body mass index ≥ 40 kg/m2; * A predicted difficult airway (eg. a history of difficult airway, mouth opening \< 3 cm, Mallampati class 4, limited neck extension or cervical spine disease); * Presence of structural abnormalities, masses, infections, or scarring in the oral cavity or oropharynx; * Known contraindications to lidocaine cream; * Two or more failed attempts at LMA insertion; * Intraoperative administration of anticholinergic agents; * Any other condition present likely to influence the study outcomes.