Structure-function relationships using the Cirrus spectral domain optical coherence tomograph and standard automated perimetry.

Published

Journal Article

To evaluate the relationship between glaucomatous structural damage assessed by the Cirrus Spectral Domain OCT (SDOCT) and functional loss as measured by standard automated perimetry (SAP).Four hundred twenty-two eyes (78 healthy, 210 suspects, 134 glaucomatous) of 250 patients were recruited from the longitudinal Diagnostic Innovations in Glaucoma Study and from the African Descent and Glaucoma Evaluation Study. All eyes underwent testing with the Cirrus SDOCT and SAP within a 6-month period. The relationship between parapapillary retinal nerve fiber layer thickness (RNFL) sectors and corresponding topographic SAP locations was evaluated using locally weighted scatterplot smoothing and regression analysis. SAP sensitivity values were evaluated using both linear as well as logarithmic scales. We also tested the fit of a model (Hood) for structure-function relationship in glaucoma.Structure was significantly related to function for all but the nasal thickness sector. The relationship was strongest for superotemporal RNFL thickness and inferonasal sensitivity (R(2)=0.314, P<0.001). The Hood model fitted the data relatively well with 88% of the eyes inside the 95% confidence interval predicted by the model.RNFL thinning measured by the Cirrus SDOCT was associated with correspondent visual field loss in glaucoma.

Full Text

Duke Authors

Cited Authors

  • Leite, MT; Zangwill, LM; Weinreb, RN; Rao, HL; Alencar, LM; Medeiros, FA

Published Date

  • January 2012

Published In

Volume / Issue

  • 21 / 1

Start / End Page

  • 49 - 54

PubMed ID

  • 21952500

Pubmed Central ID

  • 21952500

Electronic International Standard Serial Number (EISSN)

  • 1536-481X

International Standard Serial Number (ISSN)

  • 1057-0829

Digital Object Identifier (DOI)

  • 10.1097/IJG.0b013e31822af27a

Language

  • eng