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binocular vision single zone of clear |
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zone of clear, single, binocular visionĀ In Donders' diagram it is the region determined by the extremes of accommodation and convergence that can be evoked while retaining a clear, single image. Clinically, this is determined by measuring the limits of negative and positive relative convergence by using base-in and base-out prisms to blur, or by measuring relative accommodation by binocularly adding concave or convex lenses, for various binocularly fixated distances (Fig. Z1). See relative amplitude of accommodation; relative convergence; Donders' diagram; rotary prism; binocular vision. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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