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A New Perimeter for Central and Peripheral Fields

A New Perimeter for Central and Peripheral Fields Abstract Perimetry is subject to many errors because it requires cooperation on the part of the patient. Several techniques and types of equipment have been devised to increase the accuracy and ease of this examination.1-8 We were particularly interested in performing accurate central and peripheral field examinations on the same apparatus and monitoring the accuracy of fixation by an objective means. In addition, the equipment should be self-recording and have constant factors of lighting and test object control. A simple hemisphere and manually operated projection light has been in use by one of us (E.W.D.N.) for about eight years (Fig 1). More recently, another perimeter has been built incorporating objective monitoring of fixation and a self recording device. It is this piece of equipment which will be described in detail. Description. —A 1,700 mm (five-foot) diameter spun aluminum hemisphere is mounted on a stand at an appropriate height so that References 1. Harrington, D. O.: Perimetry With Ultraviolet (Black) Radiation and Luminescent Test Objects: A Preliminary Report , AMA Arch Ophthal 49:637-642, 1953.Crossref 2. Goldmann, H.: Demonstration unseres neuen Projektionskugelperimeters samt theoretischen und klinischen Bemerkungen über Perimetrie , Ophthalmologica 3:187-192, 1946.Crossref 3. Bender, M. B., and Furlow, L. T.: Phenomenon of Visual Extinction in Homonymous Fields and the Psychologic Principles Involved , Arch Neurol Psychiat 53:29-33, 1945.Crossref 4. Darley, L. H.: Visual Field Testing , Amer J Ophthal 33:1428, 1950. 5. Harrington, D. O., and Flocks, M.: Multiple Pattern Method of Visual Field Examination , JAMA 157:645-651, 1955.Crossref 6. Harrington, D. O., and Hoyt, W. F.: Ultraviolet Radiation Perimetry With Monochromatic Blue Stimuli , Arch Ophthal 53:870-881, 1955.Crossref 7. Miles, P.: Flicker Fusion Fields, Technique and Interpretation , Amer J Ophthal 33:1069-1077, 1950. 8. Gunkel, R. D., and Ryan, R. W.: A Self Recording Remote-Control Tangent Screen , Amer J Ophthal 40:897-899, 1955. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

A New Perimeter for Central and Peripheral Fields

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References (9)

Publisher
American Medical Association
Copyright
Copyright © 1963 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1963.00960050450003
Publisher site
See Article on Publisher Site

Abstract

Abstract Perimetry is subject to many errors because it requires cooperation on the part of the patient. Several techniques and types of equipment have been devised to increase the accuracy and ease of this examination.1-8 We were particularly interested in performing accurate central and peripheral field examinations on the same apparatus and monitoring the accuracy of fixation by an objective means. In addition, the equipment should be self-recording and have constant factors of lighting and test object control. A simple hemisphere and manually operated projection light has been in use by one of us (E.W.D.N.) for about eight years (Fig 1). More recently, another perimeter has been built incorporating objective monitoring of fixation and a self recording device. It is this piece of equipment which will be described in detail. Description. —A 1,700 mm (five-foot) diameter spun aluminum hemisphere is mounted on a stand at an appropriate height so that References 1. Harrington, D. O.: Perimetry With Ultraviolet (Black) Radiation and Luminescent Test Objects: A Preliminary Report , AMA Arch Ophthal 49:637-642, 1953.Crossref 2. Goldmann, H.: Demonstration unseres neuen Projektionskugelperimeters samt theoretischen und klinischen Bemerkungen über Perimetrie , Ophthalmologica 3:187-192, 1946.Crossref 3. Bender, M. B., and Furlow, L. T.: Phenomenon of Visual Extinction in Homonymous Fields and the Psychologic Principles Involved , Arch Neurol Psychiat 53:29-33, 1945.Crossref 4. Darley, L. H.: Visual Field Testing , Amer J Ophthal 33:1428, 1950. 5. Harrington, D. O., and Flocks, M.: Multiple Pattern Method of Visual Field Examination , JAMA 157:645-651, 1955.Crossref 6. Harrington, D. O., and Hoyt, W. F.: Ultraviolet Radiation Perimetry With Monochromatic Blue Stimuli , Arch Ophthal 53:870-881, 1955.Crossref 7. Miles, P.: Flicker Fusion Fields, Technique and Interpretation , Amer J Ophthal 33:1069-1077, 1950. 8. Gunkel, R. D., and Ryan, R. W.: A Self Recording Remote-Control Tangent Screen , Amer J Ophthal 40:897-899, 1955.

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Oct 1, 1963

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