Table of Contents
ISRN Ophthalmology
Volume 2013, Article ID 753202, 8 pages
Research Article

Comparison of Octopus Semi-Automated Kinetic Perimetry and Humphrey Peripheral Static Perimetry in Neuro-Ophthalmic Cases

1Department of Health Services Research, University of Liverpool, Brownlow Hill, Liverpool L69 3GB, UK
2Department of Ophthalmology, Walton Centre for Neurology and Neurosurgery, Liverpool L9 7LJ, UK
3Department of Ophthalmology, Aintree Hospital University Trust, Liverpool L9 7AL, UK

Received 12 May 2013; Accepted 18 June 2013

Academic Editors: A. M. Avunduk, H. Quiroz-Mercado, Á. Szél, and I. J. Wang

Copyright © 2013 Fiona J. Rowe et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Aim. To compare semikinetic perimetry (SKP) on Octopus 900 perimetry to a peripheral static programme with Humphrey automated perimetry. Methods. Prospective cross-section study comparing Humphrey full field (FF) 120 two zone programme to a screening protocol for SKP on Octopus perimetry. Results were independently graded for presence/absence of field defect plus type and location of defect. Results. 64 patients (113 eyes) underwent dual perimetry assessment. Mean duration of assessment for SKP was 4.54 minutes ±0.18 and for FF120 ( ). 80% of results were correctly matched for normal or abnormal visual fields using the I4e target versus FF120, and 73.5% were correctly matched using the I2e target versus FF120. When comparing Octopus results with combined I4e and I2e isopters to the FF120 result, a match for normal or abnormal fields was recorded in 87%. Conclusions. Humphrey perimetry test duration was generally longer than Octopus SKP. In the absence of kinetic perimetry, peripheral static suprathreshold programme options such as FF120 may be useful for detection of visual field defects. However, statokinetic dissociation may occur. Octopus SKP utilising both I4e and I2e targets provides detailed information of both the defect depth and size and may provide a more representative view of the actual visual field defect.