根據Aspheric Contact Lenses: Fact and Fiction
An examination of whether soft aspheric contact lenses can correct
astigmatism and spherical aberration.
By Pete Kollbaum, OD, FAAO and Arthur Bradley, PhD
http://www.clspectrum.com/article.aspx?article=12770
實驗對象：
14 eyes with low amounts of astigmatism
(-0.75 ±0.87D, five eyes with against-the-rule [ATR]
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下圖為wavefront分析(排除2階球差項)
http://www.clspectrum.com/archive/2005/March/Picture2.jpg
可以看出僅有散光隱形眼鏡能夠近乎完全弭除散光
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下為各隱形眼鏡弭除散光實驗結果
TABLE Residual Astigmatism with CLs
LENS ASTIGMATISM (DIOPTERS)
Acuvue 2 sphere -0.63
Choice AB asphere -0.74
Definitions AC asphere -0.60
Frequency 55 asphere -0.64
GP sphere -0.67
Biomedics Toric -0.02
可以看出球面隱形眼鏡幾乎對散光的弭除沒有效果
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