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Becker test

Becker test (O. N. E. Becker, is mute. the ophthalmologist, 1828-1890) – the method allowing to diagnose an eye astigmatism consists in providing the drawing to the patient, with the image of the bunches of parallel straight lines dispersing from the center extensively from an interval 30 ° (on 3 in each bunch); in the presence of an astigmatism in one or several bunches of the line are visible indistinctly.

 
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