Trials / Unknown
UnknownNCT00563667
Effect of Pterygium Excision on Intraocular Lens Power Calculation for Subsequent Cataract Operation
Effect of Pterygium Excision on IOL Power Calculation: Concurrent Cataract and Pterygium
- Status
- Unknown
- Phase
- N/A
- Study type
- Interventional
- Enrollment
- 40 (estimated)
- Sponsor
- Hospital Authority, Hong Kong · Other Government
- Sex
- All
- Age
- 18 Years
- Healthy volunteers
- —
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
Interventions
| Type | Name | Description |
|---|---|---|
| PROCEDURE | pterygium excision |
Timeline
- Start date
- 2003-12-01
- Completion
- 2004-12-01
- First posted
- 2007-11-26
- Last updated
- 2010-07-07
Locations
3 sites across 1 country: China
Source: ClinicalTrials.gov record NCT00563667. Inclusion in this directory is not an endorsement.