MedTrace Logo

Topography Guided LASIK by Different Protocols for Treatment of Astigmatism

NCT03597906 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2020-01-28

No results posted yet for this study

Summary

Background and Rationale:

LASIK has been among the highest satisfaction rates of surgical procedures, ranging from 82%-98%. Different ablation profiles have been developed over the years. The purpose of this study is to validate this novel measurement by comparing the visual outcomes when the TMR is used in myopic astigmatic LASIK to using the standard manifest refraction or the Topolyzer measurements alone.

Objectives :

To evaluate the safety, efficacy and predictability of topography-guided myopic LASIK with three different refraction treatment strategies.

Conditions

  • Refractive Surgery

Interventions

PROCEDURE

topography guided ablation

using the data obtained from the topolyzer for correction of refractive errors specially astigmatism we use 3 different treatment protocols

PROCEDURE

manifest refraction

using for ablation the exact manifest refraction

PROCEDURE

full topography modified refraction

full topography modified refraction means changing both sphere and cylinder power in the ablation profile

PROCEDURE

partial topography modified refraction

partial topography modified refraction means changing only cylinder power and axis in the ablation profile

Sponsors & Collaborators

  • Cairo University

    lead OTHER

Principal Investigators

  • Mohmed Hosny, MD · Cairo University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2018-08-15
Primary Completion
2019-11-15
Completion
2020-01-20

Countries

  • Egypt

Study Locations

More Related Trials

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 NCT03597906 on ClinicalTrials.gov