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.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Erning Wihardjo, 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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