Status:

UNKNOWN

Asymptomatic Narrow Angles - Laser Iridotomy Study; Multicentric RCT

Lead Sponsor:

Singapore National Eye Centre

Collaborating Sponsors:

National Medical Research Council (NMRC), Singapore

Conditions:

Asymptomatic Narrow Angles

Primary Angle Closure Suspects

Eligibility:

All Genders

50+ years

Phase:

NA

Brief Summary

This is a multicentric, randomised, controlled study comparing Laser Iridotomy (LI) to no treatment in subjects with asymptomatic narrow angles (ANA).One eye of each subject with ANA will be randomise...

Detailed Description

Objective: This study will compare LI versus no treatment in subjects with asymptomatic narrow angles, the anatomical trait that predisposes to primary angle closure glaucoma (PACG), in order to asses...

Eligibility Criteria

Inclusion

  • Bilateral Narrow angles
  • Age 50 years and above
  • Informed consent obtained prior to or at baseline visit

Exclusion

  • Presence of PAS
  • IOP \> 21 mm Hg
  • Glaucomatous optic neuropathy and/or CDR \> 0.7
  • Secondary angle closure such as uveitis, neovascularisation etc.
  • Prior intraocular surgery or penetrating eye injury
  • Corneal disorders such as corneal endothelial dystrophy except mild corneal guttae
  • Evidence of prior acute angle closure event
  • High risk of acute angle closure.
  • Significant cataract and visual acuity less than 20/40
  • Constant use of contact lens for refractive correction
  • Chronic use of topical or systemic steroids
  • Established retinopathies on ocular treatments (e.g. Diabetic)
  • Any other disease which is likely to cause field loss in next 3 years
  • Severe health problems decreasing life expectancy to less than one year.

Key Trial Info

Start Date :

January 1 2005

Trial Type :

INTERVENTIONAL

End Date :

January 1 2013

Estimated Enrollment :

544 Patients enrolled

Trial Details

Trial ID

NCT00347178

Start Date

January 1 2005

End Date

January 1 2013

Last Update

July 4 2006

Active Locations (1)

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Singapore Eye Research Institute

Singapore, Singapore, 168751