Auditing of Poor Visual Outcomes After Un-eventual Cataract Surgery: a Prospective Cohort Study
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
- 否
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
Manal Abd Elkafy
Principal investigator
Assiut University
