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Comparative Study of Three IOL Power Calculation Formulae for Asian Eyes Shorter Than 22mm or Longer Than 25mm

NCT00347516 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 210

Last updated 2010-05-12

No results posted yet for this study

Summary

Implantation of an intraocular lens is the gold standard in modern day cataract surgery.

The appropriate lens power needed to achieve the desired refractive outcome can be calculated with a whole variety of formulas.

To date, there has been no prospective study conducted to evaluate the accuracy of the IOL power calculation formulae commonly in use. It is well established that the frequently used IOL formulas do not show significant differences when used in eyes of average axial length (i.e. between 22mm and 25mm) and it is at the extremes of axial lengths where discrepancies arise. Our aim is to find the most appropriate formula(e) for these 'long' and 'short eyes' particularly in our population where there is a significant proportion of high myopes.

Conditions

  • Cataract

Interventions

PROCEDURE

IOL calculation formula

Sponsors & Collaborators

  • Singapore Eye Research Institute

    collaborator OTHER

  • Singapore National Eye Centre

    lead OTHER_GOV

Principal Investigators

  • Zainah Alsagoff, FRCSEd · Singapore National Eye Centre

Study Design

Allocation
RANDOMIZED
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
21 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2005-12-31
Primary Completion
2009-12-31
Completion
2009-12-31

Countries

  • Singapore

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00347516 on ClinicalTrials.gov