Comparison of Scheimpflug Photos of the Crystalline Lens in Patients Who Have Undergone Vitrectony Surgery and Controls
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 49
- 试验地点
- 1
研究概览
简要总结
Progression of nuclear sclerotic cataract after pars plana vitrectomy has been recognized for many years The mechanism for the rapid progression of nuclear sclerotic cataract remains unclear. The objective of this trial is to evaluate and compare the level and progression of cataract advancement in controls versus eyes that have undergone 20-gauge pars plana vitrectomy and 25-gauge pars plana vitrectomy.
详细描述
Approximately 105 patients will be recruited to obtain 35 control eyes that have not had pars plana vitrectomy and 35 eyes who will have undergone 20-gauge pars plana vitrectomy and 35 eyes will have undergone 25-gauge pars plana vitrectomy. Scheimpflug crystalline lens photographs will be taken for evaluation of level and progression of cataract development.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •phakic eyes of patients that are scheduled to undergo pars plana vitrectomy,
- •controls will be phakic eyes of patients that have not undergone andy kind of intraocular surgery,
- •age 18 and older
排除标准
- •any eye that is pseudophakic,
- •has had previous vitreoretinal surgery,
- •has had previous intravitreal injection,
- •previous intraocular inflammatory condition such as uveitis,
- •previous irradiation,
- •any patient with a history of ocular malignancy,
- •history of infectious intraocular condition
研究者
Rhonda Weeks
Nancy Holekamp, MD, Principal Investigator
Barnes Retina Institute