[心得] 軟式隱形眼鏡.淚鏡矯正散光的真實性與否

看板Contacts (隱形眼鏡)作者kramnik (progressive)時間16年前 (2009/11/27 17:18)推噓0(0推 0噓 0→)

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※ [本文轉錄自 optical 看板] 作者: kramnik (progressive) 看板: optical 標題: [心得] 球面隱形眼鏡.淚鏡矯正散光的真實性與否時間: Fri Nov 27 17:17:41 2009 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] =========================================================================== 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 =========================================================================== 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 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 118.168.84.238 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 118.168.84.238