【Objective】To explore the feasibility and safety of endonasal trans-middle nasal meatus transpalatinal approach to the pterygopalatine fossa and to establish a safe surgical model by identifying the reliable anatomical landmark during the procedure.

Selections of the incisions of strabotomy and analysis of related clinical problems;

Setting of HR alarm limitation for decreasing intraoperative oculocardiac reflex in strabismus surgery of children;

Outcomes and complications of strabismus surgery in Yazd,Iran;

Clinical observation of the compound anesthesia with Ketamine and Isopropy phenol for eye-heart reflex in strabismus operation.;