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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.
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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| v pattern exotropia | Active Comparator | v pattern exotropia patients with associated inferior oblique overreaction |
|
| Pattern esotropia | Active Comparator | v pattern esotropia patients with inferior oblique overreaction |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| graded recession of inferior oblique muscle | Procedure | . 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. |
| Measure | Description | Time Frame |
|---|---|---|
| orthotropia in primary position with no v pattern esotropia or exotropia. | by measuring the distant angle of strabismus in primary and upgaze less than 10prism dioptre. | 6 month |
| Measure | Description | Time Frame |
|---|---|---|
| No Inferior oblique overaction | 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. |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of medicine | Tanta | El Gharbeya | 1333 | Egypt | ||
| Faculty of medicine |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 37974078 | Derived | Sokeer SH, Ali AL, Arafa ES, Awara AM, Shafik HM. Evaluation of graded recession of inferior oblique muscle for correction of different grades of V-pattern strabismus. BMC Ophthalmol. 2023 Nov 16;23(1):462. doi: 10.1186/s12886-023-03210-x. |
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| ID | Term |
|---|---|
| D013285 | Strabismus |
| ID | Term |
|---|---|
| D015835 | Ocular Motility Disorders |
| D003389 | Cranial Nerve Diseases |
| D009422 | Nervous System Diseases |
| D005128 | Eye Diseases |
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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.
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|
| 6 month |
| Tanta |
| ELGharbia |
| 1333 |
| Egypt |