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

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

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT02893592

Acronym

MYOPAS

Enrollment

118

Registered

2016-09-08

Start date

2015-10-31

Completion date

2016-03-31

Last updated

2016-09-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Myopia

Brief summary

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

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

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)

Design outcomes

Primary

Measure	Time frame	Description
visual acuity	Month 2	LogMar

Outcome results