Trial lens set: the trial lens sets are comprised of negative and positive spheres (0.25, 0.50, 1.00, 1.50, 2.00, 3.00, 4.00, and 5.00), negative cylinders (-0.25, -0.50, -1.00, and -2.00), prisms (3, 6, 9, and 12) and auxiliary lenses (blank, pinhole, stenopaic slit, and Maddox rod).
Terms & conditions
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Please note: One set per student.