Precision of Optical Biometry and Intraocular Lens Power Calculation Using Dual Schiempflug Analyzer

Chuncheon Sacred Heart Hospital1 site in 1 country140 target enrollmentOctober 2014

ConditionsCataract

Overview

Phase: Not Applicable
Intervention: Not specified
Conditions: Cataract
Sponsor: Chuncheon Sacred Heart Hospital
Enrollment: 140
Locations: 1
Primary Endpoint: Ocular parameters
Last Updated: 11 years ago

Overview Investigators Eligibility Criteria Outcomes Sites Similar Trials

Overview

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.

Registry

clinicaltrials.gov

Start Date

October 2014

End Date

February 2015

Last Updated

11 years ago

Study Type

Observational

Sex

All

Investigators

Sponsor

Chuncheon Sacred Heart Hospital

Responsible Party

Sponsor

Eligibility Criteria

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