Intermittent exotropia
Conditions
Interventions
Sponsors
The Zhongshan Ophthalmic Center,Sun Yat-sen University
Eligibility
Sex/Gender
All
Age
8 Years to 17 Years
Inclusion criteria
Inclusion criteria: Observation group 1. Age 8~17 years old, gender is not limited; 2. Best corrected visual acuity of 0.8 or above in both eyes; 3. No anisometropia (the difference in the magnification of the two eyes < 2.50D, and the difference in cylindrical magnification <1.00D); 4. The far-oblique viewing angle and the near-oblique viewing angle are both between 15~35 prism degrees (triangular prism alternate shielding test); 5. The sum of the distance and near intermittent exotropia control scores (Office control scores) is greater than or equal to 2 points and less than or equal to 6 points; 6. Measurable stereoscopic vision at far or near with no evidence of deterioration; 7. Receiving treatment with alternate masking during the follow-up process; 8. Patients sign the informed consent form and voluntarily participate. Visual training group 1. Age 8~17 years old, gender is not limited; 2. Best corrected visual acuity of 0.8 or above in both eyes; 3. No anisometropia (the difference in the magnification of the two eyes < 2.50D, and the difference in cylindrical magnification <1.00D); 4. The far-oblique viewing angle and the near-oblique viewing angle are both between 15~35 prism degrees (triangular prism alternate shielding test); 5. The sum of the distance and near intermittent exotropia control scores (Office control scores) is greater than or equal to 2 points and less than or equal to 6 points; 6. Measurable stereoscopic vision at far or near with no evidence of deterioration; 7. Receiving only visual training therapy during the follow-up process; 8. Patients sign the informed consent form and voluntarily participate. Surgery group 1. Age 8~17 years old, gender is not limited; 2. Best corrected visual acuity of 0.8 or above in both eyes; 3. No anisometropia (the difference in the magnification of the two eyes < 2.50D, and the difference in cylindrical magnification <1.00D); 4. The far-oblique viewing angle and the near-oblique viewing angle are both between 15~35 prism degrees (triangular prism alternate shielding test); 5. The sum of the distance and near intermittent exotropia control scores (Office control scores) is greater than or equal to 2 points and less than or equal to 6 points; 6. Measurable stereoscopic vision at far or near with no evidence of deterioration; 7. Surgical treatment only during the follow-up process; 8. Patients sign the informed consent form and voluntarily participate.
Exclusion criteria
Exclusion criteria: Observation group 1. The vertical oblique angle angle is greater than or equal to 5 prisms; 2. A-V sign; 3. Presence of extraocular muscle paralysis or limitations; 4. History of previous ocular surgery; 5. Presence of amblyopia or ocular organic disease; 6. History of intermittent exotropia treatment; 7. Presence of neurological and other systemic diseases. Visual training group 1. The vertical oblique angle angle is greater than or equal to 5 prisms; 2. A-V sign; 3. Presence of extraocular muscle paralysis or limitations; 4. History of previous ocular surgery; 5. Presence of amblyopia or ocular organic disease; 6. History of intermittent exotropia treatment; 7. Presence of neurological and other systemic diseases. Surgical group 1. The vertical oblique angle angle is greater than or equal to 5 prisms; 2. A-V sign; 3. Presence of extraocular muscle paralysis or limitations; 4. History of previous ocular surgery; 5. Presence of amblyopia or ocular organic disease; 6. History of intermittent exotropia treatment; 7. Presence of neurological and other systemic diseases.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Cure rate; | — |
Secondary
| Measure | Time frame |
|---|---|
| Binocular summation function;Fixation stability;Electroencephalogram;Positive fusional convergence;Fusion suppression examination; | — |
Countries
China
Contacts
Public ContactJinrong Li
The Zhongshan Ophthalmic Center,Sun Yat-sen University
Outcome results
None listed