Photorefractive Keratectomy (PRK) for Hyperopia After Radial Keratotomy

University of Sao Paulo

Status: Completed

Conditions: Hyperopia

Treatments: Procedure: Photorefractive keratectomy

Study type: Interventional

Funder types: Other

Identifiers

NCT00917657

1183/07

Details and patient eligibility

About

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

Enrollment: 36 patients

Sex: All

Ages: 30 to 70 years old

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)