基于阿方索列线图的Keraring植入术
根据阿方索形态学手术诺模图指导的圆锥角膜患者角膜基质环植入术效果
Keratoconus (KC) is a bilateral asymmetric progressive corneal degenerative disease associated with corneal thinning and protrusion. The management of moderate progressive keratoconus involves halting its progression through corneal cross-linking as well as flattening of the ectatic steep cornea through the implantation of intrastromal corneal rings (ICR). Different nomograms were used to guide ophthalmic surgeons for the proper choice of ICR implantation to achieve the best results. The aim of the current study is to assess the visual, refractive and tomographic outcomes of Keraring implantation based on the Alfonso nomogram, in patients with keratoconus.
研究概览
研究类型
注册 (实际的)
阶段
- 不适用
联系人和位置
学习地点
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Asyut Governorate
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Asyut、Asyut Governorate、埃及、71515
- TIBA Eye Center
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Patients aged between 18-35 years.
- Patients diagnosed with progressive keratoconus.
- Mean keratometry (Km) between 48-60 D.
- Clear cornea
Exclusion Criteria:
- Mild or advanced keratoconus
- Corneal scarring.
- Other corneal or ocular diseases.
- Systemic diseases such as diabetes mellitus and autoimmune diseases.
学习计划
研究是如何设计的？
设计细节
- 主要用途：治疗
- 分配：不适用
- 介入模型：单组作业
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
有源比较器：Keraring implantation based on Alfonso nomogram
Patients with moderate progressive keratoconus, underwent Keraring implantation based on Alfonso morphological surgical nomogram. |
Patients with moderate progressive keratoconus underwent femtosecond laser-assisted intrastromal corneal ring (Keraring) implantation based on the Alfonso morphological surgical nomogram. |
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Corrected distance visual acuity
大体时间：6 months
|
Corrected distance visual acuity is measured with Snellen's acuity chart and converted to logarithm of the minimum angle of resolution (logMAR) notation. |
6 months
|
|
Spherical equivalent refraction
大体时间：6 months
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Spherical equivalent in diopters is measured with Topcon autorefractometer. |
6 months
|
|
Maximum keratometry
大体时间：6 months
|
The maximum keratometry in diopters is measured using pentacam. |
6 months
|
合作者和调查者
出版物和有用的链接
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.