Intrastromal Fresh Human Corneal Lenticule Implantation Using Smile Surgery for Treatment of Irregular Corneal Astigmatism After Penetrating Keratoplasty (New Approach)
试验速览
- 阶段
- 不适用
- 状态
- 进行中（未招募）
- 发起方
- 入组人数
- 24
- 试验地点
- 2
- 主要终点
- Increase of visual acuity
研究概览
简要总结
The aim of the study is to present the effect of implanting intrastromal fresh corneal lenticule by SMILE surgery as a new method-approach to correct the corneal shape on purpose to reduce irregular astigmatism and increasing visual acuity after penetrating keratoplasty.
详细描述
Irregular astigmatism occurs when the curvature of the eye is pronounced in any direction, not just the center. The curve could be steeper towards the bottom than on top, or it could be any configuration in which the eye's surface area is uneven.
Irregular astigmatism usually can result from corneal degenerations(keratoconus,pellucid marginal degeneration,keratoglobus), corneal surgery or trauma.
Irregular astigmatism is still the main cause of decreased visual acuity after penetrating keratoplasty.
Our study present new therapeutic method and new technology to manage irregular astigmatism after PK. Knowing that the incidence of high and irregular astigmatism after PK is still a frequent complication and source of frustration for patients and corneal surgeons our study present an adequate surgical technique implanting intrastromal human corneal lenticule using SMILE for treatment of corneal irregular astigmatism after PK trying satisfy patients visual expectations.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
盲法说明
irregullar astigmatism group
入排标准
- 年龄范围
- 18 Years 至 55 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •patients with irregular astigmatism
- •low visual acuity
排除标准
- •history of glaucoma
- •retinal detachment
- •history of ocular inflamation
研究组 & 干预措施
Intrastromal Fresh Human Lenticule Implantation
The aim of this study is to investigate the effect of intrastromal fresh corneal lenticule implantation using Smile module surgery after PK with primary objective to increase visual acuity by reducing irregular astigmatism according to high K values. The stromal pocket diameter was 8 mm, 2mm super incision, 140-µm cap thickness and fresh lenticular implantation is performed.
干预措施: Intrastromal Fresh Human Lenticule Implantation (Device)
结局指标
主要结局
Increase of visual acuity
时间窗: 12 months
Using intrastromal fresh corneal lenticule resulted in the increase of the visual acuity.
次要结局
- Decrease of irregular astigmatism(12 months)
研究者
Dr. Faruk Semiz
Head of Ophthalmology Department
Eye Hospital Pristina Kosovo