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Effect of Posterior Corneal Toricity on Refractive Outcome of Pseudophakia

NCT01554761 · Status: UNKNOWN · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2012-03-15

No results posted yet for this study

Summary

This study is to evaluate the necessity of considering posterior corneal toricity on refractive outcome of patients with cataracts and corneal astigmatism after implantation of intraocular lenses.

This is determined by comparing total corneal and refractive astigmatism,and by comparing the expected refractive result with actual refractive astigmatism postoperatively,using total corneal and anterior corneal astigmatism to calculate respectively.

Conditions

  • Astigmatism
  • Cataract

Interventions

PROCEDURE

phacoemulsification

After topical anesthesia with Alcaine, 3.0-mm clear corneal incisions were made. Torsional phacoemulsification was performed using the Infiniti Vision System with the OZil handpiece, a 45-degree Kelman miniflared tip, and DuoVisc viscoelastic (all from Alcon).

DEVICE

Pentacam (Oculus,Germany)examination

Total corneal astigmatism is obtained by Pentacam at every visit.

Sponsors & Collaborators

  • China Medical University, China

    lead OTHER

Principal Investigators

  • Jinsong Zhang, MD · Eye Hospital of China Medical University

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

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

Timeline & Regulatory

Start
2012-02-29
Primary Completion
2012-05-31

Countries

  • China

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 NCT01554761 on ClinicalTrials.gov