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PASCAL Trabeculoplasty

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified December 2008 by Asociación para Evitar la Ceguera en México.
Recruitment status was:  Recruiting
Information provided by:
Asociación para Evitar la Ceguera en México Identifier:
First received: December 5, 2008
Last updated: December 6, 2008
Last verified: December 2008
Argon laser trabeculoplasty (ALT) with 100 ms pulses is an effective therapy for lowering intraocular pressure (IOP). Similar reductions in IOP have been achieved using ns (SLT) and microsecond (MLT) pulses, which produce less thermal damage to trabecular meshwork (TM). Lack of clinically visible changes may make the accurate alignment of subsequent pulses difficult. We describe a novel technique - Patterned Laser Trabeculoplasty (PLT) using the PASCAL Photocoagulator system, and its preliminary evaluation in patients with open angle glaucoma.

Condition Intervention Phase
Open-Angle Glaucoma
Procedure: Patter Scan Laser System (OptiMedica, Santa Clara, CA, USA)
Phase 4

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Semi-Automated Patterned Laser Trabeculoplasty

Resource links provided by NLM:

Further study details as provided by Asociación para Evitar la Ceguera en México:

Primary Outcome Measures:
  • Intraocular Pressure [ Time Frame: During follow-up ]

Estimated Enrollment: 24
Study Start Date: December 2007
Estimated Study Completion Date: December 2009
Estimated Primary Completion Date: December 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Group 1
Patients with open-angle glaucoma
Procedure: Patter Scan Laser System (OptiMedica, Santa Clara, CA, USA)
Pattern Scan Laser trabeculoplasty


Ages Eligible for Study:   18 Years to 90 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • 18-year-old patients
  • Uncontrolled Open angle (Shaffer IV)
  • No previous surgical trabeculoplasty or glaucoma surgery

Exclusion Criteria:

  • Patients not willing to participate
  • Angle-closure glaucoma
  • No clear optical media
  Contacts and Locations
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Please refer to this study by its identifier: NCT00804323

Contact: Felix Gil Carrasco, MD 525510841400 ext 1163

Asociación para Evitar la Ceguera en México Recruiting
Mexico, DF, Mexico, 04030
Contact: Felix Gil Carrasco, MD    525510841400 ext 1163   
Principal Investigator: Mauricio Turati Acosta, MD         
Sub-Investigator: Adolfo Morales Gonzalez, MD         
Sponsors and Collaborators
Asociación para Evitar la Ceguera en México
Principal Investigator: Felix Gil Carrasco, MD APEC
  More Information

Responsible Party: Asociación para Evitar la Ceguera en Mexico, APEC Identifier: NCT00804323     History of Changes
Other Study ID Numbers: APEC-041
Study First Received: December 5, 2008
Last Updated: December 6, 2008

Additional relevant MeSH terms:
Glaucoma, Open-Angle
Ocular Hypertension
Eye Diseases processed this record on May 25, 2017