Comparison of Conventional and Custom Photorefractive Keratectomy (PRK)

Comparison of Conventional and Custom With Iris Registration PRK Ablations: Assessment of Visual Function and Patient Satisfaction

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT00713856

Enrollment

Registered

2008-07-14

Start date

2007-11-30

Completion date

2010-05-31

Last updated

2010-10-19

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

Conditions

Myopia

Brief summary

The study objective is to compare the clinical outcomes using wavefront guided PRK with iris registration and conventional laser PRK using FDA-approved laser technology on the same patient.

Detailed description

Patients undergoing bilateral PRK on the same day will have one eye randomly assigned to custom wavefront guided PRK and the fellow eye treated with conventional PRK.

Interventions

PROCEDURECustom PRK with iris registration

PRK

PROCEDUREConventional PRK

PRK

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to 80 Years

Healthy volunteers

Inclusion criteria

* Patients deemed to be suitable candidates for bilateral PRK

Exclusion criteria

* Patients desiring monovision correction rather than bilateral distance correction

Design outcomes

Primary

Measure	Time frame
Visual acuity	6 months

Secondary

Measure	Time frame
Manifest refraction	6 months
Wavefront aberration value	6 months

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026