Equipment: |
Spherical lens graduation +: 0.25 to 6.0 diopters, spherical lens graduation -: 0.25 to 14.0 diopters, cylindrical lens graduation +: 0.25 to 4.0 diopters, cylindrical lens graduation -: 0.25 to 4.0 diopters, spectacle prism graduation: 0, 5; 1.0; 2
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