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The Effect of Slanted Recession of Horizontal Muscle on Horizontal Strabismus With Abnormal Accommodative Convergence /Accommodation Ratio (AC/A)

Phase 3UnknownNCT03555045
Shahid Beheshti University of Medical Sciences100 enrolled

Overview

Different methods was tried to treat high AC/A strabismus cases;such as prescription of bifocal glasses in esotropia,recession of horizontal muscles with posterior fixation sutures,more recession than needed for far deviation(augmented recession),recession and pulley fixation and slant recession. Different results was reported for any type of above methods. In recent studies,slanted recession was applied for high AC/A in esotropic cases and success rate of 67% was reported.but there was no unanimity for procedure of choice. Since slant recession method is simpler and has low side effect than the other methods,therefore in this study the investigators want to peruse the outcome of this method on high AC/A horizontal strabismus.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Enrollment

100

Conditions

Horizontal Strabismus With High AC/A Ratio

Interventions

conducting the slanted recession technique on the superior and inferior polesPROCEDURE

conducting the slanted recession technique on the superior and inferior poles of the muscle based on far and near deviations.

conducting the augmented recession technique on the musclePROCEDURE

conducting the augmented recession technique on the muscle for 1 to 1.50 mm more compared with the standard method.

Eligibility

Sex: ALLMin age: 6 YearsMax age: 80 YearsHealthy volunteers:
Medical Language ↔ Plain English
Inclusion Criteria: * all patients with horizontal strabismus that the different between far deviation and near deviation is more than 10 pd Exclusion Criteria: * all patients who had history of surgery on horizontal muscles and patients with pseudo high AC/A ratio.

Locations (1)

Ophthalmic Research Center

Tehran, Iran

RECRUITING

Outcomes

Primary Outcomes

far-near deviation difference

difference between the far and near deviations

Time frame: 90 days after surgery

Secondary Outcomes

success rate of surgery

in cases with difference of far and near deviation less than 10 prism diopters

Time frame: 90 days after surgery

Central Contacts

zhaleh rajavi, MD

CONTACT

9822591616labbafi@hotmail.com
Data from ClinicalTrials.gov

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