Analysis of I-Trace High Order Aberrations Induced by Wavefront Optimized Ablation Profiles

Alexandria University10 enrolled

Overview

This work aims at the analysis of ocular aberrations induced by wave front optimized ablation profiles WFO using I-Trace aberrometer (Ray -Tracing)

The iTrace (Tracey Technologies, Houston, Tx) is uniquely designed to combine Placido corneal topography with a ray tracing aberrometer to measure quality of vision in a patient. This work aims at the analysis of ocular aberrations induced by wave front optimized ablation profiles WFO using I-Trace aberrometer (Ray -Tracing)

Study Type

INTERVENTIONAL

Allocation

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Myopia

Interventions

LASIKDEVICE

All cases were operated upon using Wavelight Allegretto EX-500 excimer laser (Alcon Laboratories, Inc., Fort Worth, TX) with wave front optimized ablation profile WFO. The Moria II microkeratome (Moria, Anthony, France) was used in all cases.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 80 Years

Medical Language ↔ Plain English

Inclusion Criteria: 1. Myopia up to -8.0 D and astigmatism up to -2.0D. 2. Cases above 18 years of age with a stable refraction for at least one year. Exclusion Criteria: 1. Keratoconus. 2. Patients with collagen diseases. 3. Previous LASIK or any other refractive surgery. 4. Severe dry eye syndrome.

Locations (1)

Alexandria Faculty of Medicine

Alexandria, Egypt

Outcomes

Primary Outcomes

Evaluation of ocular aberrations

3\. Evaluation of ocular aberrations done using iTrace Visual Functional Analyzer (ray tracing technology) to quantify changes in total higher order aberrations, coma, spherical aberrations, secondary astigmatism and trefoil after LASIK surgery

Time frame: 3 months

Visual acuity

Unaided as well as best corrected visual acuity

Time frame: 3 months

Manifest refraction

Time frame: 3 months

Data from ClinicalTrials.gov

This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.