Progression of Stereopsis Recovery in Strabismic Patients: A One-Month and Three-Month Post-Surgery Evaluation
试验速览
- 阶段
- 不适用
- 状态
- 进行中（未招募）
- 入组人数
- 34
- 试验地点
- 1
- 主要终点
- Titmus fly test
研究概览
简要总结
This prospective longitudinal observational study aims to assess stereopsis recovery in strabismic patients at one month and three months post-corrective surgery. The study will be conducted at Mayo Hospital, Lahore, and Sajjad Eye Center, Burewala, with a sample size of 34 using a purposive sampling technique. Eligible participants include patients aged ≥5 years undergoing strabismus surgery for esotropia, exotropia, or vertical deviations, with best-corrected visual acuity (BCVA) of 6/12 in both eyes. Patients with previous strabismus surgery, amblyopia, neurological conditions, or sensory strabismus will be excluded.
详细描述
Baseline assessments include visual acuity (Snellen Chart), ocular alignment (cover-uncover and prism cover tests), and stereopsis (Titmus Fly Test). The same tests will be repeated one month and three months post-surgery to evaluate changes. The study aims to determine whether strabismus surgery enhances binocular function and stereopsis, helping guide future treatment strategies. Data will be analyzed using paired t-tests to assess differences over time.
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
- 5 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients (≥5 years and adults) undergoing strabismus surgery for: esotropia, exotropia, vertical deviations (hypertropia or hypotropia)
- •Best corrected visual acuity (BCVA) of 6/12 in both eyes
- •Willingness to attend follow-up visits at 1 month and 3 months post-surgery.8
排除标准
- •History of previous strabismus surgery
- •Amblyopia
- •Neurological and systemic conditions affecting vision
- •Uncontrolled nystagmus and sensory strabismus
- •Patients unable to complete stereopsis testing due to cognitive or physical limit
结局指标
主要结局
Titmus fly test
时间窗: 12 Months
It is a contour stereo test performed at distance of 40cm. the test comprises of 3 sections: 1. The housefly which shows large disparities and should be seen in depth by most subjects. Stereoacuity range of Random Dot Butterfly is * Bottom of lower wing: 1150 sec of arc * Tip of abdomen: 700 sec of arc * Top of upper wing: 2000 sec of arc 2. There are 3 rows of animals, one animal in each row having a crossed disparity which ranges from 100, 200, 400 secs of arc. 3. Circle patterns: this section consists of 9 patterns containing four circles. The disparities of the circles range from 800 to 40 secs of arc.
次要结局
未报告次要终点
研究者
Muhammad Naveed Babur
Principal Investigator
Superior University