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August 1979

Takata Interferometric Device

Author Affiliations

Gainesville, Fla

Arch Ophthalmol. 1979;97(8):1544. doi:10.1001/archopht.1979.01020020194029

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To the Editor.  —Not long ago, my colleagues and I published a brief article in the Archives describing the use of the Takata Interferometric Acuity Meter in early detection of possible demyelinating disease. The article described the use of a Takata Interferometric Device for this purpose (Archives 97:76-78, 1979).There is no question about the validity of our findings; rather, we have discovered that the particular Takata instrument available to us was improperly wired and literally put out a far more intense beam than the instrument is rated to provide. Since then, that instrument has failed and in making repairs we have discovered the fault. At issue was the fact that it had been wired for a voltage system different than that in use in the United States. As this was the first unit delivered to this country, this is a reasonable error. At any rate, the issue is that

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