IOL Power Calculation Using Dual Schiempflug Analyzer

• Conditions: Cataract

• Registration Number: NCT02362334
• Lead Sponsor: Chuncheon Sacred Heart Hospital

Brief Summary

This study evaluates the various ocular parameters which are necessary for ocular biometry and the calculated IOL powers using both dual Schiempflug analyzer and optical low-coherence refelctometry.

Detailed Description

The measured keratometry, axial length, anterior chamber depth, lens thickness, white-to-white corneal diameter, and calculated IOL powers using various formulas including Hoffer Q, Holladay I, SRK II and SRK T measured by dual Schiempflug analyzer and optical low-coherence refelctometry will be compared.

Study Timeline

• Status Verified: 2014-10
• Study Start: 2014-10
• Primary Completion: 2015-02
• Study Completion: 2015-02
• Study First Submitted: 2015-02-09
• Study First Submitted QC: 2015-02-11
• Study First Posted: 2015-02-12
• Last Update Submitted: 2015-02-15
• Last Update Posted: 2015-02-18

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 140

Inclusion Criteria

• axial length between 21.0 and 27.0 mm
• older than 20 years old

Exclusion Criteria

• other ophthalmic diseases such as severe dry eye, glaucoma, and age-related macular degeneration
• previous ophthalmic surgery including cataract surgery, and refractive surgery
• very dense media which cannot be measured by the optical biometries
• severe zonulysis

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Ocular parameters	Single point	Parameters measured using two devices were compared at a single point
Calculated IOL powers	Single point	Calculated IOL powers using two devices were compared at a single point

Trial Locations

Locations (1)

Chuncheon Sacred Heart Hospital; 🇰🇷 Chuncheon, Korea, Republic of