期刊文献+

Aberration changes of the corneal anterior surface following discontinued use of rigid gas permeable contact lenses 被引量:5

Aberration changes of the corneal anterior surface following discontinued use of rigid gas permeable contact lenses
下载PDF
导出
摘要 AIM: To record aberrations with a corneal topographic device on the anterior surface of the cornea at different time-points prior to wearing and following discontinued use of rigid gas permeable (RGP) contact lenses. The effect of wearing RGP on the anterior surface of the cornea was discussed to provide guidance for clinical refractive error correction.METHODS: The study objects were 24 eyes from 24 patients. All patients underwent identical examination procedures prior to lens use, as well as afterwards, including slit-lamp examination, non-contact tonometer measurement, computer optometry and corneal curvature measurement, subjective refraction test, and corneal topography analysis. The patients wore contact lenses everyday for 1 month and then discontinued. Corneal topographies were recorded at certain time points of 30 minutes, 1 day, 3, 7 and 14 days following use.RESULTS: Total corneal aberration at each time point following discontinued use of RGP contact lenses was less than the time point prior to use. Detailed results were as follows: root mean square (RMS) (pre)=(1.438± 0.328)μm, RMS (30 minutes) =(1.076 ±0.355)μm, RMS (1 day) =(1.362 ±0.402)μm, RMS (3 days) =(1.373 ±0.398)μm, RMS (7 days) =(1.387 ±0.415)μm, and RMS (14 days) = (1.430±0.423)μm. Results showed that at 30 minutes after discontinued use of RGP contact lenses, almost all 2 ndand 3 rd-order aberrations change. Quadrafoil Z10 and spherical Z12 of the 4 th-order were also changed. Alterations to Z5, Z6, and Z12 at 1 day after discontinued use were significant differences compared with the time period prior to RGP use: Z5 and Z6 decreased, and Z12 increased slightly. Z5 and Z6 remained decreased at 3 days after discontinued use, but Z9 and Z10 continued to increase and Z12 returned to levels prior to RGP use. At 14 days after discontinued use, all aberrations were notsignificantly different from the values prior to use.CONCLUSION: The use RGP contact lenses greatly reduced total aberration of the anterior surface of the cornea. Ch AIM: To record aberrations with a corneal topographic device on the anterior surface of the cornea at different time-points prior to wearing and following discontinued use of rigid gas permeable (RGP) contact lenses. The effect of wearing RGP on the anterior surface of the cornea was discussed to provide guidance for clinical refractive error correction.METHODS: The study objects were 24 eyes from 24 patients. All patients underwent identical examination procedures prior to lens use, as well as afterwards, including slit-lamp examination, non-contact tonometer measurement, computer optometry and corneal curvature measurement, subjective refraction test, and corneal topography analysis. The patients wore contact lenses everyday for 1 month and then discontinued. Corneal topographies were recorded at certain time points of 30 minutes, 1 day, 3, 7 and 14 days following use.RESULTS: Total corneal aberration at each time point following discontinued use of RGP contact lenses was less than the time point prior to use. Detailed results were as follows: root mean square (RMS) (pre)=(1.438± 0.328)μm, RMS (30 minutes) =(1.076 ±0.355)μm, RMS (1 day) =(1.362 ±0.402)μm, RMS (3 days) =(1.373 ±0.398)μm, RMS (7 days) =(1.387 ±0.415)μm, and RMS (14 days) = (1.430±0.423)μm. Results showed that at 30 minutes after discontinued use of RGP contact lenses, almost all 2 ndand 3 rd-order aberrations change. Quadrafoil Z10 and spherical Z12 of the 4 th-order were also changed. Alterations to Z5, Z6, and Z12 at 1 day after discontinued use were significant differences compared with the time period prior to RGP use: Z5 and Z6 decreased, and Z12 increased slightly. Z5 and Z6 remained decreased at 3 days after discontinued use, but Z9 and Z10 continued to increase and Z12 returned to levels prior to RGP use. At 14 days after discontinued use, all aberrations were notsignificantly different from the values prior to use.CONCLUSION: The use RGP contact lenses greatly reduced total aberration of the anterior surface of the cornea. Ch
机构地区 New Vision Eye Clinic
出处 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2013年第2期178-182,共5页 国际眼科杂志(英文版)
关键词 ABERRATION rigid gas permeable contact lens CORNEA aberration rigid gas permeable contact lens cornea
  • 相关文献

参考文献16

  • 1Wang L,Dai E,Koch DD,et al.Optical aberrations of the human anterior cornea. Journal of Cataract and Refractive Surgery . 2003 被引量:3
  • 2He J C,Marcos S,Webb R H,et al.Measurement of the wave-front aberration of the eye by a fast psychophysical procedure. Journal of the Optical Society of America A Optics Image Science and Vision . 1998 被引量:1
  • 3Lu F,Mao XJ,Qu J,et al.Monochromatic wavefront aberrations in the human eye with contact lenses. Optometry and Vision Science . 2003 被引量:1
  • 4Smolek MK,Klyce SD,Sarver EJ.Inattention to nonsuperimposable midline symmetry causes wavefront analysis error. Archives of Ophthalmology . 2002 被引量:1
  • 5DIETZE HH,COX M.Correcting spherical aberration with soft contact lenses. Journal of the Optical Society of America A Optics Image Science and Vision . 2004 被引量:1
  • 6Choi J,Wee WR,Lee JH,et al.Changes of ocular higher order aberrations in on- and off-eye of rigid gas permeable contact lenses. Optometry and Vision Science . 2007 被引量:1
  • 7Griffiths M,Zahner K,Collins M,et al.Masking of irregular corneal topography with contact lenses. The CLAO Journal . 1998 被引量:1
  • 8Loretta B,Szczotka F,Shamil P.Menicon Z rigid gas permeable lenses for keratoconus and irregular cornears:a retrospective case series. Eye&Contact Lens . 2008 被引量:1
  • 9Kazuno N,Takashi K,Yoshikazu U,et al.Effect of higher-order aberrations on visual function in keratoconic eyes with a rigid gas permeable contact lens. American Journal of Ophthalmology . 2007 被引量:1
  • 10Dorronsoro C,Barbero S,Llorente L,et al.On-eye measurement of optical performance of rigid gas permeable contact lenses based on ocular and corneal aberrometry. Optometry and Vision Science . 2003 被引量:1

共引文献3

同被引文献33

引证文献5

二级引证文献15

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部