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Corneal WFG Versus AF Trans PRK in Myopic Patients With High Corneal HOA

NCT03786861 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 33

Last updated 2018-12-26

No results posted yet for this study

Summary

compare the efficacy, safety and predictability of corneal wavefront guided (WFG) and aberration free ablation in single-step transepithelial photorefractive keratectomy (TransPRK) in myopic patients with high pre-existing corneal higher order aberrations (HOAs).

Conditions

  • Myopia

Interventions

PROCEDURE

corneal WFG group

TransPRK using ESIRIS flying spot excimer laser system (SCHWIND AMARIS®500E, SCHWIND eye-tech-solutions, Kleinhostheim, Germany), with 500 Hz repetition rate for faster treatments and scanning spots and with smart pulse technology. Eye-tracking during laser ablation was achieved using a 1050 Hz infrared eye tracker centered on the pupil. Static cyclotorsion control (SCC) compensation was obtained for all patients in corneal WFG group.

PROCEDURE

aberration free group

TransPRK was performed to eligible myopic patients with or without astigmatism with corneal HOAs ≥ 0.35 µ utilizing aberration free patterns provided by ORKCAM software (SCHWIND eye-tech-solutions, Kleinostheim, Germany)

Sponsors & Collaborators

  • Menoufia University

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
21 Years
Max Age
52 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2017-01-12
Primary Completion
2017-12-31
Completion
2017-12-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03786861 on ClinicalTrials.gov