Surgically Induced Astigmatism of Temporal Versus Nasal Clear Corneal Phacoemulsification
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- Total and Surgical Induced Astigmatism
研究概览
简要总结
To compare the short-term astigmatic outcomes of phacoemulsification cataract surgery and intraocular lens implantation using temporal versus nasal clear corneal incisions.
详细描述
In a clinical trial, consecutive eyes with senile cataract underwent phacoemulsification with implantation of a 6.0 mm foldable hydrophobic acrylic intraocular lens through a 3.2 mm horizontal clear cornea incision at 180 degrees (temporal incision in right eyes, nasal incision in left eyes). Keratometric astigmatism was measured preoperatively and one and four weeks and 6 months after surgery. Surgically induced astigmatism (SIA) was calculated by the vector analysis method using the Holladay-Cravy-Koch formula. Patients with history of diabetes mellitus, connective tissue disorders, steroid use, previous ocular surgery, with the rule astigmatism >1D, pseudoexfoliation and any corneal pathology were excluded.
研究设计
- 研究类型
- Interventional
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •All the patients with senile cataract
排除标准
- •Previously operated eyes
- •Presence of corneal pathology
- •Pseudo exfoliation
- •With-the-rule (WTR) astigmatism >1 D
- •Presence of diabetes mellitus
- •History of connective tissue disease
- •Consumption of systemic steroids
研究组 & 干预措施
1
Temporal (right eye)
干预措施: phacoemulsification and intraocular lens implantation (Procedure)
2
Nasal (Left eye)
干预措施: phacoemulsification and intraocular lens implantation (Procedure)
结局指标
主要结局
Total and Surgical Induced Astigmatism
时间窗: At 1 and 4 weeks and 6 month after surgery
次要结局
未报告次要终点