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临床试验/NCT03593616
NCT03593616Unknown不适用

Auditing of Poor Visual Outcomes After Un-eventual Cataract Surgery: a Prospective Cohort Study

Assiut University0 个研究点目标入组 300 人开始时间: 2018年9月最近更新:
适应症

试验速览

阶段
不适用
入组人数
300
主要终点
The visual acuity of patients after cataract surgery

研究概览

简要总结

Globally, cataract is the major cause of blindness accounting for 51% of total blindness and there are regional variations in it. Today, cataract surgery is a highly successful and cost-effective procedure, which enhances both the vision and quality of life of patients.

Visual acuity alone should not be used as a criterion for planning cataract surgery, since visual acuity and function do not necessarily correlate. Therefore, there is a need to review our criteria for management.

Based on recent studies, at least 90% of the patients undergoing cataract surgery obtain a postoperative visual acuity of 6/12 or better in the absence of coexisting ocular pathology.

A number of previous studies have looked at the effect of risk factors on visual outcomes following cataract surgery. Risk factors commonly associated with worse visual outcomes include: age-related macular degeneration, diabetic retinopathy, corneal opacity/pathology, older age, female sex, previous vitrectomy, previous retinal detachment surgery, alpha-blockers, complex surgery, intraoperative complications and refractive surprise.

研究设计

研究类型
Observational
观察模型
Cohort
时间视角
Prospective

入排标准

年龄范围
40 Years 至 —(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Patients with any type of cataract.

排除标准

  • Patients with diabetic retinopathy.
  • Patients with previous ocular surgeries or pathologies.
  • Patients with pre-operative visual acuity (no perception of light)

结局指标

主要结局

The visual acuity of patients after cataract surgery

时间窗: 4 weeks

measured by snellen's chart

次要结局

未报告次要终点

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Manal Abd Elkafy

Principal investigator

Assiut University

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