Remole A
School of Optometry, University of Waterloo, Ontario, Canada.
Optom Vis Sci. 2000 Oct;77(10):555-63. doi: 10.1097/00006324-200010000-00010.
The relation between prismatic deviations at the spectacle plane and corresponding ocular deviations is demonstrated and expressed in the form of an equation. In addition, basic equations for the ocular prismatic deviations produced by spectacle lenses placed before the eyes are developed. These equations are a sequel to previous studies demonstrating that the current use of Prentice's rule for finding the prismatic effect produced by realistic spectacle lenses is not suitable for present day spectacle corrections. One set of equations is based on tangents of angles of ocular rotation, whereas another set of equations expresses ocular deviations in degrees. The former is appropriate for clinical purposes; the latter is suitable when greater accuracy is desired.
展示了眼镜平面的棱镜偏差与相应眼偏差之间的关系,并以方程的形式表示。此外,还推导了置于眼前的眼镜镜片产生的眼棱镜偏差的基本方程。这些方程是先前研究的延续,先前研究表明,当前使用普伦蒂斯规则来计算实际眼镜镜片产生的棱镜效应并不适用于当今的眼镜矫正。一组方程基于眼旋转角度的正切值,而另一组方程则以度数表示眼偏差。前者适用于临床目的;后者在需要更高精度时适用。