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PERG and mfPERG in Band Atrophy

NCT00553761 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 30

Last updated 2011-08-08

No results posted yet for this study

Summary

The study is designed to evaluate the ability of pattern electroretinogram (PERG) and multifocal pattern electroretinogram (mfPERG) to measure and identify the pattern of band atrophy of the optic nerve in patients with long standing chiasmal lesions. The hypothesis is that these electrophysiological tests were able to identify this such pattern. The idea is to investigate the ability of the these electrophysiological technics in detecting the neural loss from chiasmal compression and to evaluate the ability of PERG and mfPERG parameters to differentiate between eyes with band atrophy of the optic nerve and healthy eyes.

Conditions

  • Band Atrophy

Interventions

DEVICE

Pattern electroretinogram

Full field and hemifield (nasal and temporal) stimulation transient pattern electroretinogram (PERG) were recorded both in patients and controls.

Sponsors & Collaborators

  • Fundação de Amparo à Pesquisa do Estado de São Paulo

    collaborator OTHER_GOV

  • University of Sao Paulo

    lead OTHER

Principal Investigators

  • Mário Luiz R Monteiro, PhD · University of Sao Paulo

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2006-08-31
Primary Completion
2008-07-31
Completion
2009-07-31

Countries

  • Brazil

Study Locations

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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 NCT00553761 on ClinicalTrials.gov