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Spherical Aberration and Contrast Sensitivity in IOLs

NCT00576485 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 25

Last updated 2008-10-20

No results posted yet for this study

Summary

Purpose: To determine whether implantation of an intraocular lens (IOL) with a modified anterior aspheric surface results in reduced spherical aberration and improved contrast sensitivity after cataract surgery.

Design: Prospective, comparative, interventional case series.

Methods: In an intraindividual randomized prospective study of 25 patients with bilateral cataract, an IOL with a modified anterior surface (Tecnis Z9001, AMO- Group 1) was compared with biconvex lens with spherical surfaces (ClariFlex®, AMO- Group 2). Ocular aberrations for a 5.0 mm pupil and 6.0 mm pupil were measured with Hartmann-Shack aberrometer. Quality of vision was measured by visual acuity and contrast sensitivity under mesopic and photopic conditions. All patients were followed for 3 months.

Conditions

  • Cataract
  • Signs and Symptoms
  • Pseudophakia
  • Lens Diseases

Interventions

PROCEDURE

Cataract surgery and intraocular lens implantation

Cataract surgery and implantation of an intraocular lens

Sponsors & Collaborators

  • Federal University of Minas Gerais

    lead OTHER

Principal Investigators

  • Patrick F Tzelikis, MD · Federal University of Minas Gerais

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
45 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2005-02-28
Completion
2007-12-31

Countries

  • Brazil

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00576485 on ClinicalTrials.gov