Pre and Post-operative Rectus Muscle Insertion Site Changing Using Anterior Segment Optical Coherence Tomography in Strabismus Patients
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 30
- 主要终点
- The change of limbus-muscle insertion distance measured with AS-OCT
研究概览
简要总结
•Background and study aims : The investigators conducted this study to evaluate the movement of extraocular muscle after strabismus surgery with non-invasive tool called AS-OCT.
- Who can participate? patients who underwent typical lateral rectus recession surgery for correcting intermittent exotropia
- What does the study involve? Volunteers will attend a clinic for four visits over six months. They will undergo AS-OCT at every visits during follow up period. AS-OCT is non-invasive test to evaluate operation site. The test only requires their cooperation when they undergo AS-OCT.
- What are the possible benefits and risks of participating? This is non-invasive test for your postoperative follow up. Therefore, there will be no risks about this test.
- Where is the study run from? Samsung Medical Center
- When is the study starting and how long is it expected to run for? From Feb 2014 to Dec 2014
详细描述
The aim of this study is 1) to evaluate the reliability and accuracy of AS-OCT in the measurement of the lateral rectus (LR) insertion distance, 2)to investigate the longitudinal change of LR muscle insertion after strabismus surgery, and 3)to determine the effect of insertion movement on the angle of deviation after strabismus surgery. An AS-OCT scan of the LR muscle was performed every visits. Preoperative limbus-LR insertion distance was compared with intraoperative surgical caliper measurement of LR insertion using intraclass correlation coefficient analysis (ICC). Data on gender, age, degree of deviation (prism diopter), and spur-LR insertion distance using AS-OCT were collected at postoperative months 1,3 6.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Prospective
入排标准
- 年龄范围
- 9 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •patients who underwent lateral rectus recession surgery for correcting intermittent exotropia
排除标准
- •previous ocular surgery
- •other ocular diseases except intermittent exotropia
- •amblyopia
结局指标
主要结局
The change of limbus-muscle insertion distance measured with AS-OCT
时间窗: baseline and 1.3.6 months
次要结局
未报告次要终点