Moderate Intermittent Exotropia
Conditions
Keywords
moderate intermittent exotropia, surgical treatment, observation
Brief summary
The purpose of this study is to determine the long-term effect and security of the surgical treatment and observation only on ocular alignment, binocular stereopsis, and quality of life in children with moderate intermittent exotropia.
Interventions
PROCEDURErecession or resection of the horizontal extraocular muscles
Sponsors
Sun Yat-sen University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
5 Years to 18 Years
Healthy volunteers
No
Inclusion criteria
1. To correspond the definition of IXT: monocular or binocular alternative exotropia, exodeviation at distance for 15 prism diopters at least, can control the normal ocular alignment, normal ocular movements. 2. Simultaneous perception and fusion point in synoptophore, but no normal function of fusion and stereopsis. 3. Age at from 5 to 18 years, sex unlimited. 4. No treatment for IXT previously (including surgical and non-surgical treatment). 5. No amblyopia. 6. Signed informed consent form voluntarily.
Exclusion criteria
1. Accompanied with ocular organic diseases. 2. Accompanied with systemic diseases (e.g. nervous system disease). 3. Unable to regular follow-up (e.g. from countryside and outlying district). 4. Investigators concluded that should be excluded.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Ocular alignment (Prism alternative cover test) | 5 years |
| Binocular stereopsis at distance and near (Random dot stereopsis test) | 5 years |
Secondary
| Measure | Time frame |
|---|---|
| Newcastle control scores | 5 years |
| The intermittent exotropia questionnaire | 5 years |
Countries
China
Contacts
Primary ContactTao Shen, M.D.
Outcome results
None listed