Corneal Collagen Cross-linking (CXL) versus Combined CXL and Femtosecond Laser-assisted Intra-corneal Ring Segment Implantation for Treatment of Keratoconus

Not Applicable

• Conditions: Eye Diseases; Surgery

• Registration Number: PACTR202102825518454
• Lead Sponsor: Faculty of Medicine university of Alexandria

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2021-01-09
• Last Update Posted: 29 May 2023

Recruitment & Eligibility

• Status: Complete
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

Eyes with progressive keratoconus
Presence of the clear central cornea.
Corrected visual acuity (VA) of less than 20/40.
Intolerance to contact lenses.
A minimum central corneal thickness of 400 µm for the CXL procedure, and a minimum peripheral corneal is athickness of 450 µm at the planned incision sites for ring implants.
K reading values from 48 D - less than 65 D.

Exclusion Criteria

Severe keratconus (keratometric values of 65.0 D or more).
Acute hydrops, corneal haze or opacity.
Presence of active or recent ocular infection or inflammation.
Collagen disease, and pregnancy or lactation during the study.

Study & Design

• Study Type: Interventional
• Study Design: Not specified