The Efficiency of a New Device for Performing Capsulorhexis in Cataract Surgery
试验速览
- 阶段
- 1 期
- 发起方
- 入组人数
- 20
- 试验地点
- 2
- 主要终点
- capsulorhexis must be round and with regular edge and no tears
研究概览
简要总结
During cataract operations a capsulorhexis is being performed. This is done in order to enable the removal of lens material while keeping the capsule intact in order to put inside the lens capsule an artificial intra ocular lens.
The capsulorhexis must be round and with regular edge and no tears. While performing a cataract surgery we use phako emulsification machine that sends an ultrasonic wave that creaks the lens nucleus and at the same time irrigates the anterior chamber of the eye and sucks the fluid and the lens material of the creaked lens.
The round shape and the regularity of the capsulorhexis are a must in these surgeries since the lens capsule must stay intact and stable in order to enable the phacoemulsification and the implant of the artificial lens.
Today capsulorhexis are done with a bent needle or with special forceps; the act of capsulorhexis is delicate, sometime un predicted and difficult to teach. The learning curve is relatively long and difficult.
The proposed device enables a capsulorhexis which is round and has regular edges, done almost automatically and is predicted. The learning curve is short and easy. The capsulorhexis is done through the original operating wound with no need to widen it.
详细描述
Planed Procedure
20 patients will be tested in this trail.
Consecutive patients that have senile cataract will be examined preoperatively as is done usually and the data of the examination will be collected/ a special attention will be given to the type of cataract and lens stability.
Systemic diseases will not be considered as exclusion criteria.
Patients with dens or mature cataract will be excluded.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 盲法
- None
入排标准
- 年龄范围
- 20 Years 至 90 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •senile cataract
排除标准
- •dens or mature cataract trauma congenital instability of the lens(phacodonesis,TXF)
结局指标
主要结局
capsulorhexis must be round and with regular edge and no tears
时间窗: Post operative follow up will be done as usually, one day, one week, 3 weeks and six weeks after operation
As the title of this experiment:"The trying a new device for performing capsulorhexis in cataract surgery".Becuase we are not changing the protocol of Cataract surgery,the outcome measure of this experiment is the efficiency of this device, the safety and the simplicity of the use the device inorder to give a simple and safe solution for capsulorhexis.Therefor the outcome measure will be IOL stability, the shape of capsulorexis and intra ocular post operative inflammation if will occur. The trail is not comparative.
次要结局
未报告次要终点