Feasibility Study of Laser Treatment of the Crystalline Lens to Correct Presbyopia
2022年3月7日 更新者:LensAR Incorporated
A Single Center, Prospective Clinical Trial to Evaluate the Feasibility of Laser Treatment of the Crystalline Lens to Correct Presbyopia: Philippines
The study will evaluate whether the LensAR laser system can be used in the lens of the eye to increase the ability to read and/or see near objects
研究概览
详细说明
The objective of this study is to evaluate the feasibility of the LensAR Laser System to surgically intervene within the crystalline lens to improve vision by increasing amplitude of accommodation in patients having elected to undergo lens extraction and IOL implantation
研究类型
介入性
注册 (实际的)
80
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。
学习地点
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-
-
Makati City、菲律宾、1200
- Asian Eye Institute
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参与标准
研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
45年 至 60年 (成人)
接受健康志愿者
是的
有资格学习的性别
全部
描述
Inclusion Criteria:
- Subjects must sign and be given a copy of the written informed consent form.
- Subjects must have elected to undergo lens extraction and IOL implantation to treat their ocular disorder then elect to have the LensAR laser surgery as part of the procedure.
- Cataract should not exceed LOCS III Grade 2.
- Subjects must have best corrected distance visual acuity of 20/40 or better in the eye to be treated .
- Subjects must be ≥ 45 years and ≤ 60 years of age at time of subject eligibility visit.
- Subjects must be willing and able to return for scheduled follow up examinations for 6 months after cataract surgery or up to 3 years (at 6 month intervals) if no cataract surgery is performed.
- Subject must have central 7 mm of clear cornea without vascularization
Exclusion Criteria:
- Subjects who are pregnant, lactating, or planning to become pregnant during the course of the study.
- Subjects who have undergone previous corneal or intraocular surgery in the eye to be treated.
- Subjects with a history, signs or symptoms of ocular disease or atypical finding which would be contraindicated under standard of care for cataract surgery.
- Diabetic or hypertensive subjects with clinical evidence of retinal pathology.
- Subjects with macular degenerative pathology.
- Subjects with a history of steroid-responsive rise in IOP or uncontrolled glaucoma in either eye.
- Subjects with known lens/zonular instability such as, but not restricted to, Marfan's Syndrome, Pseudoexfoliation Syndrome, etc.
- Subjects with corneal disease or pathology that precludes applanation of the cornea or transmission of laser wavelength or distortion of laser light.
- Subjects who cannot attain ocular dilation adequate to allow laser treatment within the minimum range based on the laser procedure to be applied.
- Subjects with known sensitivity to planned study concomitant medications.
- Subjects using systemic medication that is known to reduce the amplitude of accommodation (such as medication for motion sickness containing hyoscine or other antimuscarinic drugs, anticholinergic drugs, anti-psychotic drugs, tricyclic antidepressants and other drugs acting on the central nervous system).
- Subjects participating in any other ophthalmic drug or device clinical trial during the time of this clinical investigation.
学习计划
本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:非随机化
- 介入模型:单组作业
- 屏蔽:无(打开标签)
研究衡量的是什么?
主要结果指标
结果测量 |
大体时间 |
|---|---|
|
Increased objective amplitude of accommodation
大体时间:1 month
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1 month
|
次要结果测量
结果测量 |
大体时间 |
|---|---|
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不良事件发生率
大体时间:1个月
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1个月
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员:Harvey S Uy, MD、Asian Eye Institute
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始
2009年12月1日
初级完成 (实际的)
2011年10月4日
研究完成 (实际的)
2011年10月4日
研究注册日期
首次提交
2010年2月3日
首先提交符合 QC 标准的
2010年2月3日
首次发布 (估计)
2010年2月4日
研究记录更新
最后更新发布 (实际的)
2022年3月21日
上次提交的符合 QC 标准的更新
2022年3月7日
最后验证
2022年3月1日
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.