Clinical trial NCT00553761: PERG and mfPERG in Band Atrophy
Official title: Pattern Electroretinogram and Multifocal Pattern Electroretinogram For the Detection of Neural Loss in Patients With Permanent Temporal Visual Field Defect From Chiasmal Compression
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Band Atrophy
Keywords: Band atrophy
Pattern electroretinogram
Chiasmal compression
Neural loss
Electrophysiological tests
Lead sponsor: University of Sao Paulo
Sponsor class: OTHER
Collaborators: name: Fundação de Amparo à Pesquisa do Estado de São Paulo
First posted: 2007-11-06
Enrollment: 30
Sex: ALL
Minimum age (years): 18
Maximum age (years): 75
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Patients with band atrophy from chismal compression and controls

Brief 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.


Eligibility criteria: Inclusion Criteria:

1. Visual acuity better than 20/30
2. Refractive error less 5 spherical diopter and 3 cylinder diopter
3. Temporal field defect

Exclusion Criteria:

1. Presence of glaucoma and optic nerve anomalies
2. Anormal nasal field

Primary outcomes:
Secondary outcomes:
Other outcomes:
Locations:
city: São Paulo
country: Brazil
facility: Universidade de São Paulo
Study officials:
affiliation: University of Sao Paulo
name: Mário Luiz R Monteiro, PhD
role: STUDY_CHAIR
References:
citation: Monteiro ML, Hokazono K, Cunha LP, Oyamada MK. Correlation between multifocal pattern electroretinography and Fourier-domain OCT in eyes with temporal hemianopia from chiasmal compression. Graefes Arch Clin Exp Ophthalmol. 2013 Mar;251(3):903-15. doi: 10.1007/s00417-012-2156-8. Epub 2012 Sep 29.
citation: Monteiro ML, Hokazono K, Cunha LP, Oyamada MK. Multifocal pattern electroretinography for the detection of neural loss in eyes with permanent temporal hemianopia or quadrantanopia from chiasmal compression. Br J Ophthalmol. 2012 Jan;96(1):104-9. doi: 10.1136/bjo.2010.199661. Epub 2011 Mar 17.
citation: Monteiro ML, Cunha LP, Costa-Cunha LV, Maia OO Jr, Oyamada MK. Relationship between optical coherence tomography, pattern electroretinogram and automated perimetry in eyes with temporal hemianopia from chiasmal compression. Invest Ophthalmol Vis Sci. 2009 Aug;50(8):3535-41. doi: 10.1167/iovs.08-3093. Epub 2009 Mar 5.
citation: Cunha LP, Oyamada MK, Monteiro ML. Pattern electroretinograms for the detection of neural loss in patients with permanent temporal visual field defect from chiasmal compression. Doc Ophthalmol. 2008 Nov;117(3):223-32. doi: 10.1007/s10633-008-9126-9. Epub 2008 Apr 10.