NCT04924231已完成不适用
Effect of 1.8-mm Steep-axis Clear Corneal Incision on the Posterior Corneal Astigmatism in Candidates for Toric IOL Implantation
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: 2017年2月1日最近更新:
适应症
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 60
- 试验地点
- 1
- 主要终点
- corneal astigmatism
研究概览
简要总结
we aimed to analyze the effects of cataract surgery using a 1.8-mm steep-axis clear corneal incision (CCI) on the posterior corneal surfaces based on the keratometry from the rotating Scheimpflug imaging device (Pentacam HR) in candidates for toric intraocular lens (IOL) implantation
详细描述
Preoperative and at least 1-month postoperative data measured by Pentacam HR were collected in patients for toric IOL implantation. Surgically induced astigmatism on the posterior cornea (P-SIA) was calculated based on the preoperative and postoperative keratometric data, and the related factors of P-SIA were analyzed.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Retrospective
入排标准
- 年龄范围
- 40 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •patients aged at least 45 years old who were scheduled for cataract surgery; (2) regular corneal astigmatism ≥ 1.0 D; (3) the imaging quality parameter (QS) of Pentacam HR was "OK"; and (4) follow-up time ≥1.0 month.
排除标准
- •(1) irregular corneal astigmatism; (2) corneal scar, corneal degeneration, pterygium invading the optic zone; (3) corneal endothelium count<1,000/mm2, corneal endothelial dystrophy, iritis, glaucoma and retinal disease; (4) history of eye surgery, such as corneal refractive surgery, corneal transplantation and retinal surgery; (5) the main incision was expanded or sutures were used during surgery; and (6) some postoperative complications, such as persistent corneal edema, Descemet's membrane detachment and poor wound healing, and any others that might affect the measurement results of the Pentacam HR during the follow-up period.
结局指标
主要结局
corneal astigmatism
时间窗: post 1 month
postoperative anterior, posterior and total corneal astigmatism
次要结局
未报告次要终点
研究者
研究点 (1)
Loading locations...
相似试验
已完成
不适用
Effect of corneal and scleral incisions in cataract surgery on astigmatism & aberrationsCondition 1: Astigmatism in cataract surgery. Condition 2: Corneal aberrations.Disorders of refractionpost procedural disorders of the eyeIRCT138903213827N2Tabriz University of Medical Sciences80
Unknown
不适用
Biaxial Microincision Cataract Surgery TechniqueCataract SenileNCT03793101Eyemed Centrum Okulistyczne100
已完成
不适用
Clinical Investigation of Corneal Incision Size After Intraocular Lens (IOL) ImplantationCataractsNCT02826421Alcon Research114
已完成
不适用
The effect of cataract surgical techniques on the corneal endothelium: a comparison between conventional phacoemulsification with AqualaseCataractISRCTN41218609Record Provided by the NHSTCT Register - 2007 Update - Department of Health30
已完成
不适用
Phacoemulsification SleevesCataractNCT00289068University of Oklahoma44