To Evaluate the Visual Performance After Bilateral Implantation of Multifocal Intraocular Lenses
Visual Performance of Multifocal Intraocular Lenses Following Removal of the Crystalline Lens
研究概览
详细说明
This study evaluates the visual performance after bilateral implantation of multifocal intraocular lenses (IOL). This prospective study is performed at the department of Ophthalmology, Goethe University, Frankfurt, Germany.
Patients who received bilateral implantation of a multifocal intraocular lens pre-enrollment were included consecutively. Exclusion criteria were previous ocular surgeries excluding cataract surgery and refractive lens exchange, regular corneal astigmatism of >1.5 diopter, and ocular pathologies or corneal abnormalities. At 3 months postoperative examination included manifest refraction; monocular and binocular uncorrected (UCVA) and distance-corrected (DCVA) visual acuity in at far, intermediate at near distance (logMAR); slit-lamp examination. 3 months postoperatively defocus testing, binocular contrast sensitivity (CS) under photopic and mesopic conditions, and a questionnaire on subjective quality of vision, optical phenomena, and spectacle independence were performed.
研究类型
注册 (实际的)
联系人和位置
学习地点
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Hessen
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Frankfurt am Main、Hessen、德国、60590
- Department of ophthalmology University clinic Frankfurt
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参与标准
资格标准
适合学习的年龄
- 孩子
- 成人
- 年长者
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
- bilateral cataract surgery or refractive lens exchange with the implantation a multifocal intraocular lens
- a regular corneal astigmatism < 1.5 D measured with Pentacam (Oculus, Wetzlar, Germany)
Exclusion Criteria:
- other previous ocular surgeries
- ocular pathologies
- corneal abnormalities
- endothelial cell count below 2000/mm²
学习计划
研究是如何设计的?
设计细节
研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
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中距离最佳矫正视力
大体时间:晶状体手术后 3 个月测量
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晶状体手术后 3 个月以 logMAR 测量的中距离单眼和双眼矫正视力
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晶状体手术后 3 个月测量
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
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近距离最佳矫正视力
大体时间:晶状体手术后 3 个月测量
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晶状体手术后 3 个月以 logMAR 测量的近距离单眼和双眼最佳矫正视力
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晶状体手术后 3 个月测量
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远距离裸眼视力
大体时间:晶状体手术后 3 个月测量
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晶状体手术后 3 个月以 logMAR 测量的单眼和双眼远距离裸眼视力
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晶状体手术后 3 个月测量
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中距离裸眼视力
大体时间:晶状体手术后 3 个月测量
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晶状体手术后 3 个月以 logMAR 测量的单眼和双眼裸眼中距视力
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晶状体手术后 3 个月测量
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近距离裸眼视力
大体时间:晶状体手术后 3 个月测量
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晶状体手术后 3 个月以 logMAR 测量的近距离单眼和双眼裸眼视力
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晶状体手术后 3 个月测量
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散焦曲线测试
大体时间:晶状体手术后 3 个月测量
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在适光照明条件 (ETDRS) 下以 0.5 D 步长从 -5.0 D 到 +2.0 D 测试散焦曲线(单眼和双眼)。
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晶状体手术后 3 个月测量
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Best corrected visual acuity at far distance
大体时间:Measured 3 month after lens surgery
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Monocular and binocular best corrected visual acuity at far distance measured in logMAR 3 month after lens surgery
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Measured 3 month after lens surgery
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Binocular contrast sensitivity (CS) under photopic, mesopic, and mesopic with glare lighting conditions
大体时间:Measured 3 month after lens surgery
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Binocular contrast sensitivity (CS) was measured under photopic, mesopic (0.167 cd/m²), and mesopic with glare lighting conditions by means of the "Frankfurt-Freiburg Contrast and Acuity Test System" (FF-CATS)
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Measured 3 month after lens surgery
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合作者和调查者
调查人员
- 学习椅:Thomas Kohnen, Professor、Goethe University Clinic Frankfurt
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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