FIELD: medicine; ophthalmology.
SUBSTANCE: invention is intended for simplification and facilitation of correct fixation of lenses and accessories in device for determination of visual acuity. Device comprises a seat for lenses and accessories. Magnets are installed in the seat. Lenses and accessories are made in steel holder. Seat is made in the form of two guides. Each guide is made with a recess. Guides are made with rounding and arranged so that they form cylindrical surface with inner diameter corresponding to outer diameter of lenses and accessories. Two magnets are installed in each guide. Lenses and/or accessories are installed in the guide packages, besides, between the lens and/or accessories there is an annular spacer installed. Accessories used are color light filters, an occluder, various denominations of diaphragms, additional lenses, for example, cylindrical ones.
EFFECT: use of the claimed invention improves reliability of fixation and speeds of changing lenses and accessories.
3 cl, 1 dwg
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