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临床试验/NCT00366496
NCT00366496已完成不适用

Comparison of Visual Outcomes, Wavefront Analysis, Contrast Sensitivity and Glare Testing Following Cataract Extraction Between Acrysof Single-Piece IOL and Acrysof WF

Medical University of South Carolina0 个研究点目标入组 30 人开始时间: 2004年7月1日最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
入组人数
30
主要终点
Contrast sensitivity

研究概览

简要总结

To determine quality of vision post cataract extraction and intraocular lens (IOL) implantation of 2 different acrylic intraocular lenses: Acrysof® Single-Piece IOL and Acrysof® WF, through evaluation of contrast sensitivity, glare testing, visual outcomes, wavefront, corneal topography, and patient satisfaction.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Double

入排标准

年龄范围
50 Years 至 80 Years(Adult, Older Adult)
性别
All
接受健康志愿者
否

入选标准

  • •Unilateral or bilateral cataract
  • •Eligible for phacoemulsification with primary implantation of a posterior chamber IOL. If bilateral, patient will receive the same IOL than the fellow eye.
  • •Expected maximum of 4 weeks and minimum of 1 week interval between primary and second eye surgeries when bilateral.
  • •Best corrected visual acuity (BCVA) should be no better than 20/40 in the presence of a glare source using Snellen visual acuity. In the Snellen visual acuity chart, better than 20/40 will be at least 3 letters read correctly in the 20/30 line.
  • •Naturally dilated pupil (in dim light) ≥ 4.0 mm in both eyes.

排除标准

  • •Preoperative ocular pathology potentially affecting visual acuity
  • •Previous intraocular or corneal surgery.
  • •Keratometric astigmatism exceeding 1.5 diopters.
  • •Planned postoperative refraction for mono-vision.
  • •Current contact lens usage.
  • •Other ocular surgery at the time of the cataract extraction.
  • •Uncontrolled diabetes.
  • •Any neurological condition that might interfere with performance of required test.
  • •Auto-immune deficiency disease.
  • •Other severe acute or chronic medical or psychiatric condition that may increase the risk associated with study participation or study device implantation or may interfere with the interpretation of study results.
  • •Use of any systemic or topical drug known to interfere with visual performance.
  • •Surgical Exclusion Criteria
  • •Significant anterior chamber bleeding.
  • •Detached Descemet's membrane
  • •Iris damage
  • •Posterior capsule rupture
  • •Radial tear in capsulorhexis
  • •Vitreous loss
  • •Zonular rupture.
  • •Use of corneal sutures for more than 1 week.
  • •Post-implantation Exclusion Criteria
  • •Haptic not in the capsular bag.
  • •Descentration of the IOL of more than 1.0 mm
  • •Ocular pathologies potentially affecting visual acuity that were not evident prior to surgery.

结局指标

主要结局

Contrast sensitivity

Visual acuity

次要结局

  • Induction of hight order aberrations
  • Corneal topography
  • Patient satisfaction

研究者

申办方类型
Other

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