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Effect of Pterygium Excision on Intraocular Lens Power Calculation for Subsequent Cataract Operation

NCT00563667 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 40

Last updated 2010-07-07

No results posted yet for this study

Summary

Pterygium is known to induce with-the-rule astigmatism. Excision of pterygium will steepen the cornea and reduce corneal astigmatism. We postulate that the alteration of keratometry reading will indirectly affect the IOL power calculation in cases with concurrent pterygium and cataract. Concurrent pterygium and cataract is common in Hong Kong and other tropical regions. The effect of pterygium excision on intraocular lens power calculation is investigated.

Conditions

  • Pterygium
  • Cataract
  • Astigmatism

Interventions

PROCEDURE

pterygium excision

Sponsors & Collaborators

  • Hospital Authority, Hong Kong

    lead OTHER_GOV

Principal Investigators

  • Lulu Cheng, Dr · Department of DOVS, Prince of Wales Hospital/ The Chinese University of Hong Kong

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2003-12-31
Completion
2004-12-31

Countries

  • China

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 NCT00563667 on ClinicalTrials.gov