Photorefractive Keratectomy (PRK) for Hyperopia After Radial Keratotomy

To assess the efficacy, predictability, stability and safety of corneal wavefront-guided photorefractive keratectomy (PRK) for correcting hyperopia and astigmatism after radial keratotomy (RK).

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Hyperopia Eye Diseases Refractive Errors

Age range

30 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Hyperopia or hyperopic astigmatism with spherical equivalent of up to + 9,25 D and astigmatism of up to - 4,5 D;
Uncorrected Visual Acuity of 20/40 or worse;
Best-Corrected Visual Acuity of 20/60 or better.

Exclusion criteria

Systemic or ocular conditions that could bias results
Previous photorefractive surgery

Treatment and study plan

Photorefractive keratectomy

Procedure

Sponsors and collaborators

Lead sponsor

University of Sao Paulo

Other

Registry information

Official study title

Corneal Wavefront-Guided PRK With Adjunctive Mitomycin-C for the Treatment of Hyperopia After Radial Keratotomy

Important dates

Study start: 2008
Primary completion: 2009
Study completion: 2009
First posted: Jun 10, 2009
Registry last updated: Jun 10, 2009

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed