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Refractive Change Induced by 2.8-mm Corneal Incision

NCT00742950 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 108

Last updated 2011-06-27

No results posted yet for this study

Summary

The investigators' purpose is to study the induced refractive change caused by different 2.8-mm corneal incision locations in phacoemulsification, because the investigators hypothesize that the effect may be different for nasal, temporal, and superior location, although they are considered astigmatism neutral.

Patients will be randomized to nasal or temporal incision, or assigned to superior incision, depending on preexisting astigmatism. Visual acuity, refraction, keratometry, Pentacam analysis, intraocular pressure, biomicroscopy, and funduscopy, will be carried out before and after phacoemulsification.

Outcome measures will be induced corneal refractive change (Fourier power vector analysis), ISV change, and visual acuity, at 6 months.

Conditions

  • Cataract
  • Refractive Surgery
  • Astigmatism

Interventions

PROCEDURE

Nasal 2.8-mm corneal incision

Phacoemulsification through a nasal 2.8-mm incision

PROCEDURE

Temporal 2.8-mm corneal incision

Phacoemulsification through a 2.8-mm temporal incision

PROCEDURE

Superior 2.8-mm incision

Phacoemulsification through a superior 2.8-mm corneal incision

Sponsors & Collaborators

  • Hospital Universitario Ramon y Cajal

    lead OTHER

Principal Investigators

  • Jaime Tejedor, MD, PhD · Dept Ophthalmology

  • José A Pérez-Rodríguez, MD · Dept Ophthalmology

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
50 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2008-08-31
Primary Completion
2009-09-30
Completion
2009-12-31

Countries

  • Spain

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 NCT00742950 on ClinicalTrials.gov