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Standard Farnsworth-Munsell (F-M) disks and caps are numerically encoded in a two-digit, base-five, system using resistors and zener diodes connected to miniature jack plugs. When the subject orders the disks in the usual way, he connects the plugs to sockets that are in turn connected to an electronic processor. The various error scores are computed, and the error-versus-position graph plotted by a pen recorder, in a total time of between 0.5 and 2.5 min.
Related Publications
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Klinische Monatsblatter fur Augenheilkunde,
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American journal of optometry and physiological optics,
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Transactions of the ophthalmological societies of the United Kingdom,
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The British journal of ophthalmology,
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Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists),
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Journal of the Optical Society of America. A, Optics, image science, and vision,
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Documenta ophthalmologica. Advances in ophthalmology,
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Annals of ophthalmology,
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Eye (London, England),
