Prism-Ballasted and Truncated Spherical Trial Lenses As Indicators of Toric Soft Lens Rotation

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Abstract

Fifteen refractive astigmats were fitted with prism ballasted and truncated piano, spherical lenses and prescription toric soft lenses. The initial rotation observed with each lens type did not differ significantly, indicating that trial sets of such spherical lenses may provide an effective method of fitting toric soft lenses.

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