Monocular Exotropia With V Pattern, V Pattern Esotropia
Conditions
Keywords
Vpattern strabismus, inferior oblique overaction, graded recession, Dissociated vertical deviation
Brief summary
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.
Detailed 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.
Interventions
PROCEDUREgraded recession of inferior oblique muscle
. 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 degree 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 than15 degree or +3). Simultaneous correction of the horizontal deviation was performed at the same sitting.
Sponsors
Tanta University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Intervention model description
Forty patients from 3 to 18 years old with V pattern strabismus and primary IOOA were 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 7.5to 10 degree and mild IOOA (10 degree or +1) ,10 mm recession for amplitude 11- 15 degree and moderate IOOA (11 -15 degree or +2) and maximum recession for amplitude more than 15 degree and marked IOOA (15 or +3). Simultaneous correction of the horizontal deviation was performed at the same sitting. Follow up after one week,1 month ,3 month and 6-month.
Eligibility
Sex/Gender
ALL
Age
3 Years to 18 Years
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| orthotropia in primary position with no v pattern esotropia or exotropia. | 6 month | by measuring the distant angle of strabismus in primary and upgaze less than 10prism dioptre. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| No Inferior oblique overaction | 6 month | 2.No hypertropia in adducted position.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 degreeor +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 ( 15 or +3). Simultaneous correction of the horizontal deviation was performed at the same sitting. |
Countries
Egypt
Outcome results
None listed