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The four-meter confrontation visual field test.

S R Kodsi1, B R Younge

  • 1Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota.

Transactions of the American Ophthalmological Society
|January 1, 1992
PubMed
Summary
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The 4-meter confrontation visual field test enhances macular function assessment, detecting central scotomas missed by the standard 0.5-meter test. This method also identifies macular sparing in specific visual field defects.

Area of Science:

  • Ophthalmology
  • Neuro-ophthalmology

Background:

  • The standard 0.5-meter confrontation visual field test is widely used.
  • Limitations exist in detecting subtle central visual field defects with the standard test.

Purpose of the Study:

  • To evaluate the utility of the 4-meter confrontation visual field test.
  • To assess its ability to detect macular dysfunction and specific visual field anomalies.

Main Methods:

  • Utilized the 4-meter confrontation visual field test in addition to the standard 0.5-meter test.
  • Compared the diagnostic yield of both methods.

Main Results:

  • The 4-meter test successfully identified small central and paracentral scotomas.
  • It also detected macular sparing in homonymous hemianopias and quadrantanopias.

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  • These findings were often missed by the 0.5-meter test alone.

    • Conclusions:

    • The 4-meter confrontation visual field test is a valuable adjunct to the standard 0.5-meter test.
    • It provides crucial information regarding macular function and specific visual field defects.
    • Recommended for use in appropriately selected patients for comprehensive visual field assessment.