1 December 1991 Accurate method for measuring oblique astigmatism and oblique power of ophthalmic lenses
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Abstract
The measurement of oblique astigmatism error and its oblique power of ophthalmic lens under identical conditions of the human visual system--such as the distance from the center rotation of the eye to the back vertex surface of the lens--viewing distance, and lens aperture using a Mach Zehnder interferometer is describe.
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Erning Wihardjo, Erning Wihardjo, Donald E. Silva, Donald E. Silva, } "Accurate method for measuring oblique astigmatism and oblique power of ophthalmic lenses", Proc. SPIE 1529, Ophthalmic Lens Design and Fabrication, (1 December 1991); doi: 10.1117/12.50480; https://doi.org/10.1117/12.50480
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