Indications

Determination of restrictive component of limited ductions.

Performed in the operating room before strabismus surgery or in the office with a cooperative adult.

Preoperative Procedure

None.

Instrumentation

Lid speculum (e.g., Lancaster, Barraquer)

Toothed forceps (e.g., Bishop-Harmon, 0.5 mm Castro-viejo)

Operative Procedure

1. Anesthesia: General anesthesia or topical (e.g., proparacaine or tetracaine). If topical, augment the anesthesia by holding a cotton pledget soaked with anesthetic in the area to be grasped.

2. Place lid speculum if patient is under general anesthesia.