NCT04685122Unknown不适用
Study of Subluxation Lens Biometrics and Postoperative Intraocular Lens Stability
Second Affiliated Hospital, School of Medicine, Zhejiang University1 个研究点 分布在 1 个国家目标入组 60 人开始时间: 2020年11月1日最近更新:
适应症
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 60
- 试验地点
- 1
- 主要终点
- The tilt angle of the intraocular lens
研究概览
简要总结
To compare the accuracy of four lens diameter measurement methods and to study the influencing factors of intraocular lens deviation after operation
研究设计
- 研究类型
- Observational
- 观察模型
- Ecologic Or Community
- 时间视角
- Prospective
入排标准
- 年龄范围
- 20 Years 至 88 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •(1) Subluxation of the lens is less than 180 degrees; (2) Part of the edge of the lens can be seen in the pupil area after the pupil is dilated
排除标准
- •(1) Total dislocation of the lens to the vitreous cavity (2) Patients with small eyeballs and small eyelid fissures (3) Patients younger than 18 years old (4) Congenital cataracts in both eyes (5) Corneal dystrophy or endothelial cell insufficiency (6) Chronic uvea Inflammation (7) Progressive fundus disease (8) Fragile capsular bag (9) Retinitis pigmentosa or pseudocapsular exfoliation syndrome
结局指标
主要结局
The tilt angle of the intraocular lens
时间窗: 3 month postoperation
The angle between the plane of the lens and the plane of the pupil is the inclination of the lens
The eccentric distance of the intraocular lens
时间窗: 3 month postoperation
The distance between the center of the lens plane and the center of the pupil plane is the eccentric distance of the lens.
Lens diameter
时间窗: through study completion, an average of 1 year
Measured by related instruments before surgery and calculated by the circumference of the tension ring in the surgical video screenshot
次要结局
未报告次要终点
研究者
研究点 (1)
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