Comparison of intraocular lens (IOL) calculation with Ray-tracing method using Phacooptics and SRK/T formula

Phase 3

Recruiting

• Conditions: cataract IOL calculation formula; cataract; IOL calculation

• Registration Number: TCTR20150715002
• Lead Sponsor: Faculty of Medicine

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2015-07-15
• Study Completion: 2016-08-31
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Recruiting
• Sex: All
• Target Recruitment: 80

Inclusion Criteria

-age 40-90
-significant cataract that suiutable for phacoemulsification and IOL implantation
-cataract is the only cause of significant visual impairment
-axial length 22-25 mm
-complete inform/consent
-willing and able to comply with th study protocol

Exclusion Criteria

-unabe to insert IOL in the bag
-multiple operative procedures at the time of IOL implantation
- decentration of IOL more than 1 mm
- preop astigmatism >1.5D
- post op BCVA<20/40
- other ocular pathlogy that cause visual impairment that were not apparent prior to surgery:AMD macular edema,glaucoma,RD

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
accuracy of IOL power calculation,Phacooptics 1 month postop refraction

Secondary Outcome Measures

Name	Time	Method
difference of accuracy of IOL power calculation using Phacooptics and SRK/T 1 month postop refraction