Correction of Refractive Error Surprises After Cataract Surgery in Adults
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 入组人数
- 63
- 主要终点
- Diagnosis and treatment of the resulting refractive error surprises
研究概览
简要总结
A refractive surprise can be defined as the failure to achieve the intended postoperative refractive target or the presentation of unexpected and, unwanted post-operative refractive error. It can cause anisometropia or dominance switch and is a source of patient dissatisfaction due to unmet expectations.The best way to manage refractive surprise is to prevent it. The 2017 NICE guidelines on the management of cataracts provide advice on prevention of refractive surprise through accurate biometry, A-constant optimisation, intraocular lens (IOL) formula selection and avoiding wrong lens implant errors.Benchmark standards for NHS cataract surgery dictate that 85% of eyes should be within 1 dioptre (D) and 55% within 0.5D of target spherical equivalent refraction following surgery.
详细描述
Aim(s) of the Research:
- detection of refractive surprises using autorefractometer, and corneal topography.
- treatment of the resulting refractive error surprises.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 55 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •All adult patients scheduled for cataract surgery with:
- •Symptomatizing patients with postoperative spherical error of more than 1 diopters.
- •Symptomatizing patients with postoperative cylindrical error of more than 1 diopters.
- •Symptomatizing patients with uncorrected distant visual acuity less than 6/24
- •Symptomatizing patients with corrected distant visual acuity of less than 6/12
- •Clear cornea.
- •Uneventful surgery.
排除标准
- •Patients with complicated cataract.
- •Raised intraocular pressure (IOP).
- •Patients with pathologies of the posterior segment of the eye.
- •Other causes of diminution of vision.
结局指标
主要结局
Diagnosis and treatment of the resulting refractive error surprises
时间窗: Baseline
Rate of refractive error surprises
次要结局
未报告次要终点
研究者
Abdelrahman Mohamed saad
ophthalmology specialist at ophthalmology department Assiut University hospital
Assiut University