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Clinical Trials in Egypt / NCT06278220
Starting soon Observational

Scheimpflug Versus Placido-disc System in Evaluation of Corneal Higher-Order Aberrations

NCT06278220 · tracked via the Priya Life Science Egypt tracker
Sponsor
Assiut University
Phase
Observational
Started
2024-07-01
Last updated
2024-02-28

Condition(s) studied

Corneal Higher-order Aberrations

Investigational drug(s) / intervention(s)

placido-based topographer (wavelight allegro topolyzer vario) and scheimpflug -based (Oculus Pentacam )

placido-based topographer (wavelight allegro topolyzer vario) and scheimpflug -based (Oculus Pentacam ): An informed written consent will be obtained from all patients that will be included in this study. Patients in this study will undergo pentacam and topolyzer examination to asses corneal high order aberrations before LASIK procedure. Patients will be assigned to undergo LASIK. Follow up pentacam and topolyzer examination will be done 3 months after LASIK.

Study summary

Aim of work:

To assess the agreement between placido-based topographer (wavelight allegro topolyzer vario) and scheimpflug -based (Oculus Pentacam ) regard measuring corneal higher order aberrations before and after LASIK.

Eligibility

Sex
ALL
Min age
18 Years
Max age
45 Years
Healthy volunteers
No
Inclusion Criteria: * Patients with refractive errors from +6 diopters to -8 diopters sphere and up to -6diopters cylinder. Exclusion Criteria: * Patients with systemic diseases such as diabetes. * keratoconus or keratoconus suspect, amblyopic eyes. * Patients with best corrected visual acuity (BCVA) not achieving 20/25. * glucoma * Previous ocular surgeries or trauma.

Primary outcome measure(s)

  • Agreement between placido-based topographer (wavelight allegro topolyzer vario) and scheimpflug -based (pentacam) — Before LASIK and 3 months after LASIK
    Agreement between placido-based topographer (wavelight allegro topolyzer vario) and scheimpflug -based (pentacam) regard measuring corneal high order aberrations before and after LASIK.

Trial sites (1)

FacilityCityRegionStatus
Naglaa Moustafa Asyut Egypt

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Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT06278220 on ClinicalTrials.gov ↗ ← All trials in Egypt