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Randomized Prospective Study of Selective Laser Trabeculoplasty (SLT) Versus Argon Trabeculoplasty (ALT) in Patients With Pseudoexfoliation Glaucoma and Ocular Hypertension

NCT01126203 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 25

Last updated 2010-05-24

No results posted yet for this study

Summary

Multi-center, prospective, randomized, controlled clinical trial to compare selective laser trabeculoplasty (SLT) and Argon laser trabeculoplasty (ALT) in pseudoexfoliation glaucoma and ocular hypertension patients. IOP will be recorded, at baseline, 6 weeks, 6 months and 1 year after the laser procedure.

Conditions

Interventions

PROCEDURE

SLT

All eyes will be treated using a commercially available Q-switched Nd:YAG laser (Coherent Selecta 7000, Coherent Inc., Palo Alto , CA, USA) calibrated by the manufacturer. On the day of treatment, IOP will be measured, then one drop of Apraclonidine 1% or Brimonidine 0.2% and pilocarpine 1% or 2% will be instilled. Before the patient is seated at the laser slit-lamp system a proparacaine hydrochloride drop will be instilled in the eye to be treated. A Goldmann goniolens or a Latina SLT or any other goniolens will be placed on the eye to be treated with methyl cellulose 1%. The helium-neon aiming beam is focused onto the pigmented trabecular meshwork. SLT will be performed with approximately 50 applications, a 400um spot size with energies varying from 0.8-1.2 mjoules.

PROCEDURE

ALT

All eyes will be treated using Ophthalas 532 Eyelite Laser Photocoagulator (Alcon Surgical, Dallas-Fort Worth, Texas, USA. On the day of treatment, IOP will be measured, then on the day of treatment, IOP will be measured, then one drop of Apraclonidine 1% or Brimonidine 0.2% and pilocarpine 1% will be instilled. Before the patient is seated at the laser slit-lamp system a proparacaine hydrochloride drop will be instilled in the eye to be treated. A Goldmann goniolens will be placed on the eye to be treated with methyl cellulose 1%. The aiming beam is focused onto the anterior portion of the pigmented trabecular meshwork. ALT will be performed to the superior or inferior 180 degrees with \~ 50 applications, a 50um spot size with energies varying from 400-700 mW with 0.1 second duration.

Sponsors & Collaborators

  • Canadian Glaucoma Clinical Research Council

    collaborator OTHER

  • University of Calgary

    lead OTHER

Principal Investigators

  • Andrew C Crichton · University of Calgary

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2006-09-30
Primary Completion
2009-09-30
Completion
2009-10-31

Countries

  • Canada

Study Locations

More Related Trials

Entities

Diseases

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 NCT01126203 on ClinicalTrials.gov