Efficiency, Predictability and Security of the Trans-epithelial Photorefractive Keratectomy

The photorefractive keratectomy was the first correction mode refractive laser. It's a photo-ablation of a predetermined thickness of anterior corneal stroma. Debridement of epithelium can be done either mechanically (m-PRK) or by laser (trans-PRK). Trans-PRK has a lot of interests: facility and speed of procedure as well as suppression of human variable. Very good results are obtained by m-PRK. The aim of this study is to show equivalence or non inferiority of trans-PRK over conventional m-PRK in terms of safety and refractive efficiency

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Key information

Conditions

Myopia Eye Diseases Refractive Errors

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

patients with stable refractive error (more than 2 years)
Myopia up to -4.00 diopters and astigmatism up to -3.00 diopters

Exclusion criteria

Phototherapeutic keratectomy (PTK)

Treatment and study plan

Primary outcomes

visual acuity

Time frame: Month 2

LogMar

Sponsors and collaborators

Lead sponsor

Centre Hospitalier Régional Metz-Thionville

Other

Registry information

Official study title

Efficiency, Predictability and Security of the Trans-epithelial Photorefractive Keratectomy (Trans-PRK) for Low and Medium Myopia and Astigmatism: Retrospective Study About 118 Eyes

Acronym: MYOPAS

Important dates

Study start: 2015
Primary completion: 2015
Study completion: 2016
First posted: Sep 8, 2016
Registry last updated: Sep 15, 2016

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