FIELD: medicine.
SUBSTANCE: invention relates to medicine, namely to ophthalmology and can be used for determination of vision acuity. In order to determine small angular distances observation of objects is performed via reducing optic system, which contains short-focus objective and long-focus eye-piece. Visual angle, at which virtual image of objects is seen, corresponds to visual angle of eye. Method can be used in research work and practical work of ophthalmologists for reliable measurement of vision acuity.
EFFECT: method makes it possible to test vision acuity in angular measures.
2 dwg, 1 ex
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