Background: Despite international efforts to conduct a standardized surgical safety protocol, there are still errors such as operating on the wrong eye. There is a universal protocol that was implemented back in July 2004 by the joint commission that seeks to prevent errors. It includes three basic points: preoperative verification, marking of the surgical site, and immediate waiting time before the incision.
Objective: To propose a marking method that allows us, in addition to knowing which eye to operate on, to have both a horizontal and vertical surgical approach on the patient's skin to have more certainty on the procedure to be performed.
Method: Description of the marking technique in patients with strabismus based on the type of deviation, and surgery proposed in each muscle and patient.
Results: Several examples of the surgical plan are presented with photos and diagrams.
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