Correction of V-pattern Strabismus by Graded Recession of Inferior Oblique Muscle . (Pattern)

Tanta University

Status: Completed

Conditions: Monocular Exotropia With V Pattern; V Pattern Esotropia

Treatments: Procedure: graded recession of inferior oblique muscle

Study type: Interventional

Funder types: Other

Identifiers

NCT05786053

34123/9/20

Details and patient eligibility

About

V pattern strabismus is the commonest of alphabet pattern. Its identification is essential to plan a proper surgical management. Graded recession is a very logical approach to treat inferior oblique overaction (IOOA). The aim Is to evaluate the efficacy of graded recession of inferior oblique muscle for correction of different grades of V pattern.

Full description

prospective interventional study for forty patients with V pattern strabismus and primary inferior oblique overeaction will be evaluated by prism cover test to assess the grade of IOOA and amplitude of V-pattern. Graded recession of IO muscle depends on the amplitude of the V-pattern and degree of IOOA. Eight mm recession for amplitude 7.5 to 10 degree and mild IOOA (10 or +1) ,10 mm recession for amplitude 11- 15 degree and moderate IOOA (11-15 or +2) and maximum recession for amplitude more than 15 degree and marked IOOA ( more than 15 degree or +3). Simultaneous correction of the horizontal deviation will be performed at the same sitting. Follow up after I week,1 month ,3 month and 6-month.

Enrollment: 40 patients

Sex: All

Ages: 3 to 18 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Cases with V pattern strabismus with the age of the patients will be ≥3 years.

Exclusion criteria

• • Structural ocular pathology
• Significant neurodevelopmental delay

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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40 participants in 2 patient groups

v pattern exotropia

Active Comparator group

Description:

v pattern exotropia patients with associated inferior oblique overreaction

Treatment:

Procedure: graded recession of inferior oblique muscle

Pattern esotropia

Active Comparator group

Description:

v pattern esotropia patients with inferior oblique overreaction

Treatment:

Procedure: graded recession of inferior oblique muscle