Comparison of Intraocular Lens Power Calculation Methods After Corneal Laser Refractive Surgery in Axial and Refractive Ammertropia

• Conditions: Cataract; Refractive Errors

• Registration Number: NCT01979172
• Lead Sponsor: The National Eye Hospital, Cairo, Egypt

Brief Summary

The study aims at determining the best biometry calculation formula to be used in IOL calculation of cataract patients how previously underwent laser refractive correction surgery

Detailed Description

Patients undergoing laser refractive surgery will will be investigated in means of Pentacam testing and IOL master biometry both preoperative and 6 weeks postoperative to determine which IOL calculation formula is the nearest and most accurate to preoperative records in different refractive sittings.

Study Timeline

• Status Verified: 2013-11
• Study Start: 2013-11
• Study First Submitted: 2013-11-03
• Study First Submitted QC: 2013-11-03
• Last Update Submitted: 2013-11-03
• Study First Posted: 2013-11-08
• Last Update Posted: 2013-11-08
• Primary Completion: 2014-03
• Study Completion: 2014-03

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 400

Inclusion Criteria

• all patient undergoing laser refractive surgery

Exclusion Criteria

• previous ophthalmic surgery
• previous trauma
• ocular pathology other than refractive error

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Best Selected IOL calculation formula	6 weeks

Trial Locations

Locations (1)

Watany Eye Hopsital; 🇪🇬 Cairo, Egypt