Laser Iridotomy Versus Phacoemulsification in Acute Angle Closure - Full Text View

Purpose

This is a randomised controlled clinical trial to compare laser peripheral iridotomy (LPI) and primary phacoemulsification with intra-ocular lens implantation (phaco/IOL) in the treatment of acute primary angle-closure glaucoma (APACG). Following successful medical lowering of raised intra-ocular pressure (IOP) and control of intraocular inflammation, patients presenting to Singapore National Eye Centre and Singapore General Hospital with acute primary angle-closure glaucoma who meet the eligibility are randomised to one of the two treatment arms: laser peripheral iridotomy and primary phacoemulsification with intra-ocular lens implantation. These patients will be monitored closely for 2 years post-operatively.

Condition	Intervention
Angle Closure Glaucoma	Procedure: Laser Preipheral Iridotomy and phacoemulsification

Genetics Home Reference related topics:

early-onset glaucoma

MedlinePlus related topics:

Glaucoma

U.S. FDA Resources

Study Type:	Interventional
Study Design:	Treatment, Randomized, Open Label, Active Control, Parallel Assignment, Safety/Efficacy Study

Official Title:	Angle Closure: Laser Iridotomy Versus Phacoemulsification Study (ACLIPS)- A Study of Acute Primary Angle Closure Glaucoma Comparing Two Treatment Modalities: Laser Peripheral vs Phacoemulsification With Posterior Intraocular Lens Implant

Further study details as provided by Singapore National Eye Centre:

Primary Outcome Measures:

Recurrence of APACG: Patients who develop a recurrence of symptoms of APACG. Treatment of recurrence will be decided by the ophthalmologist managing the patient.
IOP lowering medication is required.
Further glaucoma surgery is required.

Secondary Outcome Measures:

Cataract surgery is required. Patients in the LPI group who develop significant progression of cataract during the follow-up period will be offered cataract extraction.
No light perception
Eyes become phthisical

Estimated Enrollment:	70
Study Start Date:	October 2001
Estimated Study Completion Date:	October 2007

Show Detailed Description

Eligibility

Ages Eligible for Study:	18 Years and older
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No

Criteria

Inclusion Criteria:

APACG. In cases where both eyes are eligible, the right eye will be entered.
IOP less than or equal to 30 mmHg within 24 hours of presentation and after initiation of medical treatment
Significant cataract with best corrected visual acuity equal or less than 6/15
Informed consent

Exclusion Criteria:

Secondary causes of angle-closure e.g. subluxed lens, uveitis, trauma and neovascular glaucoma
Intumescent cataract (phacomorphic glaucoma)
Eyes with anterior chamber depth differing by more than 0.3 mm
Eyes with no cataract
Active ocular infection in either eye which would prevent surgery
Female subjects who are pregnant, nursing or of childbearing potential and not using adequate contraception
Participating in another study
Previous intraocular eye surgery on the affected eye.
Any medical condition which would be a contra-indication to surgery

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00350428

Locations


Singapore
	Singapore National Eye Centre
	Singapore, Singapore, 168751

Sponsors and Collaborators

Singapore National Eye Centre

Investigators


Principal Investigator:	Steve Seah, FRCS (Ed)	Singapore National Eye Centre

More Information

Study ID Numbers:	R221/13/2001, SQGL05
First Received:	July 7, 2006
Last Updated:	October 23, 2006
ClinicalTrials.gov Identifier:	NCT00350428
Health Authority:	Singapore: Clinical Trials & Epidemiology Research Unit (CTERU)

Keywords provided by Singapore National Eye Centre:

Acute primary angle closure

Laser preipheral iridotomy

Phacoemulsification

Study placed in the following topic categories:

Glaucoma

Eye Diseases

Glaucoma, Angle-Closure

Hypertension

Ocular Hypertension

ClinicalTrials.gov processed this record on September 05, 2008

Sponsored by:	Singapore National Eye Centre
Information provided by:	Singapore National Eye Centre
ClinicalTrials.gov Identifier:	NCT00350428