NCT05377099

Evaluation of the Change in the DA Ratio, IR and SSI as Parameters of Corneal Biomechanics Post Different LVC Procedures

Evaluation of the Change in the Deformation Amplitude Ratio, Integrated Radius and Stress Strain Index as Parameters of Corneal Biomechanics Post Different Laser Vision Correction Procedures

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 33 (actual)
• Sponsor: Cairo University · Academic / Other
• Sex: All
• Age: 18 Years – 40 Years
• Healthy volunteers: Accepted

Summary

In the study, The Investigators will compare the participates' corneal biomechanical properties including: Deformation Amplitude ratio (Da Ratio) Integrated Radius (IR) Stress strain index (SSI) All measurements will be taken before and after 3 months of LVC.

Detailed description

Each Participant will undergo preoperative pentacam and corvis scan for his eyes and the 3 months post operative. The participants are divided into 3 groups, one who underwent LASIK, one PRK and one Femto LASIK. Collected data will before and after surgery will be compared in each arm and then the 3 arms will be compared together.

Conditions

• Corneal Biomechanics

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	CORVIS	Measurement of the DA ratio, IR and SSI before and after for patients under gone LASIK, femto LASIK and PRK using the CORVIS device.

Timeline

• Start date: 2022-01-01
• Primary completion: 2022-08-01
• Completion: 2023-01-30
• First posted: 2022-05-17
• Last updated: 2023-02-21

Locations

1 site across 1 country: Egypt