Prism Block Set, 22 Prisms

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Optego's individual prism blocks are manufactured following our proprietary ClearPrism® Technology Protocol. Made from a clear acrylic material. Each prism is laser engraved with the appropriate diopter power. Made in the USA.

The prism block set features 22 prisms that come in a compact polymer case with a carrying handle. The case opens flat and fits in a drawer.


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The set includes 22 prisms: 0.5D, 1D, 2D, 3D, 4D, 5D, 6D, 7D, 8D, 9D, 10D, 12D, 14D, 16D, 18D, 20D, 25D, 30D, 35D, 40D, 45D, and 50D. One red lens is also included.

  • Single universal prism block: 1-7/16" (37 mm) high
  • Case: 8-7/8" x 8" x 2" (225 x 203 x 50 mm)