Comparison of Minimal Invasive Lens Surgery and Traditional Cataract Surgery for Treating Congenital Cataracts
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 100
- 试验地点
- 1
- 主要终点
- Best correctied visual acuity
研究概览
简要总结
Previously, we have developed a minimal invasive lens surgery in the purpose of reduce post-operative complications of congenital cataract. This prospective, randomized controlled study aims at comparing the prognosis of the minimal invasive lens surgery and the traditional cataract surgery for treating congenital cataracts.
详细描述
Patients with congenital cataract that requires surgical intervention are enrolled. Then the patients are assigned to two groups: Group I: the participants receive a minimal invasive lens surgery, while in Group II, the participants receive a traditional cataract surgery. A secondary intraocular lens implantation is performed when the patient is two years old for both Group I and Group II. Investigators then compare the visual acuity, incidence of high intraocular pressure, incidence of visual axis opacification, uveitis and iris/pupil abnormality between two groups, to evaluate and compare the prognosis of minimal invasive lens surgery and traditional cataract surgery for treating congenital cataracts.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 1 Month 至 24 Months（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age between 1 month and 24 months
- •Uncomplicated congenital cataract (≥ 3 mm central dense opacity) in one or both eyes with an intact non-fibrotic capsular bag
- •Informed consent signed by a parent or legal guardian
排除标准
- •confirmed or suspected hereditary cataract, including and not restricted to family history of congenital cataract
- •Intraocular pressure >21 mmHg
- •Preterm birth (<28 weeks)
- •Presence of other ocular diseases (keratitis, keratoleukoma, aniridia, glaucoma) or systemic disease (congenital heart disease, ischemic encephalopathy)
- •History of ocular diseases (any congenital eye diseases, such as, congenital cataract, congenital glaucoma, congenital aniridia) in the family
- •History of ocular trauma
- •Microcornea
- •Persistent hyperplastic primary vitreous
- •Lowe syndrome
结局指标
主要结局
Best correctied visual acuity
时间窗: recorded at each follow-up to five years of age.
Determined with the Teller's acuity card, the Lea symbol visual acuity chart or the ETDRS chart according the patient's age.
次要结局
- High intra-ocular pressure(after lens removal to five years of age.)
- Visual axis opacification(after lens removal to five years of age.)
- Bi-ocular visual function(performed when the patient is four years old and five years old.)
研究者
Haotian Lin
Clinical Professor
Sun Yat-sen University