An observational study in Intermittent Exotropia, sponsored by Samsung Medical Center. Status unknown. Open to participants aged 5 Years to 60 Years. Per ClinicalTrials.gov, last updated 2015-05-21.
Sponsored by Samsung Medical Center · Observational
This study is a following study of our prior study about AS-OCT in strabismus. The aim of this study is to compare the longitudinal changes of lateral rectus (LR) muscle insertion between two types of bilateral recession surgery. An AS-OCT scan of the LR muscle was performed every visits. Data on gender, age, degree of deviation (prism diopter), and spur-LR insertion distance using AS-OCT were collected at postoperative months 1,3 in each group.
58 studies on the registry are indexed under Exotropia; 13 are open to participants now.
Browse Exotropia studies →Samsung Medical Center is the lead sponsor of 1,011 studies on the registry; 152 are open to participants now.
Of its 7 completed or terminated interventional studies of FDA-regulated products, 1 (14%) have results posted.
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60 patients
: 30 for conventional recession surgery 30 for hang-back recession surgery
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This is the standard technique for recession with two single-armed sutures.Exposure of the rectus muscle insertion includes freeing the insertion and proximal muscle borders sufficiently to place the sutures. And the needle is passed through the tendon avoiding the anterior ciliary arteries. If the sutures are passed as shown a true knot is formed, and the muscle is detached. Then a caliper measures from the limbus or the original insertion. A passage of the needle through sclera. The recessed muscle is ideally parallel to the old insertion (or nearly so). Conjunctival incision was finally sutured.
Procedure: lateral rectus recession (bilateral)
The hang-back recession has been described as "a simple, safe alternative to conventional recession." The procedure is said to be less likely to result in scleral perforation because needles are placed through relatively thicker sclera near the insertion site. It is the modified techique for recession with one double-armed sutures.
Procedure: lateral rectus recession (bilateral)
Two types of recession (conventional or hang-back method) are typical surgeries for correcting intermittent exotropia. It depends on surgeon's decision at the time of surgery.
The change of limbus-muscle insertion distance measured with AS-OCT
Time frame: baseline and 1.3 months
No study locations are listed for this record.
The record gives a start of May 2015, a primary completion of Aug 2015 and a completion of Dec 2015. It does not say whether these dates are actual or estimated.
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This study is status unknown, as verified in Apr 2015. You cannot join it, but the record below documents what was studied.
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