Changes of Corneal and Total Ocular Higher-Order Aberrations After Conventional LASIK, Femto-LASIK and PRK in Low and Moderate Myopia
Trial Snapshot
- Phase
- Not Applicable
- Status
- Not yet recruiting
- Sponsor
- Sohag University
- Enrollment
- 60
- Primary Endpoint
- Changes of corneal higher-order aberrations
Study Overview
Brief Summary
This prospective comparative interventional study will enroll patients with low and moderate myopia who seek laser vision correction at Sohag Center for LASIK and Corneal Surgeries, Sohag, Egypt. Eyes included will be divided into 3 groups according to the type of refractive surgery used (conventional LASIK, Femto-LASIK and PRK) and each group will be subdivided into 2 groups according to the degree of myopia (low and moderate).
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Screening
- Masking
- None
Eligibility Criteria
- Ages
- 18 Weeks to 45 Weeks (Child)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Age: 18 - 45 years old.
- •Refraction:
- •Low and moderate grades of myopia will be included:
- •(According to manifest refraction) low ([0] - ≤ [-3] diopters) Moderate ([-3] - ≤ [-6] diopters) With cylinder ≤ [-1.5] diopters.
Exclusion Criteria
- •Any ocular surgery or medication, corneal opacities, pregnancy, lactation and keratoconus.
Arms & Interventions
group 1
Conventional Lasik
Intervention: Laser refractive surgery (Procedure)
group 2
Femto LASIK
Intervention: Laser refractive surgery (Procedure)
group 3
PRK
Intervention: Laser refractive surgery (Procedure)
Outcomes
Primary Outcomes
Changes of corneal higher-order aberrations
Time Frame: 1 year
Corneal aberrometry will be performed using Sirius's Scheimpflug-Placido topography (CSO, Florence, Italy).
Changes of total ocular higher-order aberrations
Time Frame: 1 year
Wavefront refraction will be acquired by the iDesign aberrometer (Hartmann-Shack Aberrometer)
Secondary Outcomes
No secondary outcomes reported
Investigators
Ahmed Abdeen Refai
Master degree ophthalmology department faculty of medicine Sohag University
Sohag University