UnknownNot Applicable

Corneal High Order Aberrations After Stream Light and Mechanical Photorefractive Keratectomy

Egypt60 participantsStarted 2023-11-01

Plain-language summary

Compare corneal high order aberrations before and after stream light trans-PRK and mechanical photorefractive keratectomy including third order aberrations; Trefoil and coma aberrations and forth order aberrations; spherical aberrations

Who can participate

Age range20 Years – 40 Years

SexALL

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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * • Stable refraction for 1 year (refraction does not exceed 1D more than the last prescribed glasses). * Discontinuation of soft contact lens wears at least 1 week before examination. * Topography criteria: * Corneal thickness equal or more than 470 um * Symmetrical bow-tie * Back elevation not more than +12 * Normal Belin\\Ambrosio Enhanced ectasia display * Spherical equivalent not more than -6D. Exclusion Criteria: * • Previous ocular surgery * Concurrent ocular pathology; corneal scar, corneal dystrophy * Systemic disease; Uncontrolled diabetes, collagen disease * Post-operative complications; sub-epithelial haze.

What they're measuring

Corneal high order aberrations measured before and after the intervention by corneal topography machine

Timeframe: 1 monthe after surgery

Trial details

NCT IDNCT06110286

SponsorAssiut University

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2024-10-01

Contact for this trial

Esraa R Mokhtar, master

01064021834 esraarifaat89@gmail.com

View on ClinicalTrials.gov More Compare Corneal High Order Aberrations Before and After Stream Light Trans-PRK and Mechanical Photorefractive Keratectomy trials