Littan K E
Klin Monbl Augenheilkd. 1988 May;192(5):475-9. doi: 10.1055/s-2008-1050156.
The examination of near heterophoria with a heterometer using a large series of test plates presented "free-sighted" (i.e., not hindered by optical or mechanical means) enables a more comprehensive analysis to be made than has so far been achieved with other instruments. The principal components of the instruments are an angle mirror and various test panels. The selection of test panels currently available should be developed further. However, comparison with other instruments for examining near heterophoria justifies the conclusion that heterophoria or nearsightedness due to errors of refraction can be determined more easily with this instrument and hence treated more appropriately. Results of examination with the heterometer, combined with exhaustive application of comprehensive analytical test procedures, will probably help to extend our knowledge of the control sequence of binocular coordination in near vision. The instrument has already proved its value not only in orthoptic departments, clinics, and ophthalmologists' offices, but also for determining refractive indices and for screening. It can therefore be recommended for the diagnosis of near heterophoria.
使用一系列测试板，通过视轴计对近距离隐斜视进行“自由视”（即不受光学或机械手段阻碍）检查，能够进行比迄今使用其他仪器更全面的分析。该仪器的主要部件是一个角度镜和各种测试面板。目前可用的测试面板的选择应进一步完善。然而，与其他用于检查近距离隐斜视的仪器相比，可以得出这样的结论：使用该仪器可以更轻松地确定因屈光不正导致的隐斜视或近视，从而进行更恰当的治疗。视轴计的检查结果，结合全面分析测试程序的详尽应用，可能有助于扩展我们对近视力双眼协调控制序列的认识。该仪器不仅已在斜视矫正科、诊所和眼科医生办公室证明了其价值，还可用于确定屈光指数和筛查。因此，推荐使用它来诊断近距离隐斜视。
