SMILE术后角膜前表面非球面性与角膜高阶像差的关系

doi:10.3760/cma.j.issn.1674-845X.2014.07.008

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Abstract

Objective To evaluate the characteristics of anterior corneal asphericity and higher order aberrations after SMILE surgery， and to analyze the correlation between them. Methods In this prospective study， 41 subjects who underwent SMILE surgery were enrolled with right eyes selected for the study. The asphericity coefficient Q-value at diameters of 6， 7， 8 and 9 mm and total higher order aberrations （HOA）， spherical aberrations （Z40）， secondary spherical aberrations （Z60）， vertical coma （Z3-1）， horizontal coma （Z31）， y-trefoil （Z3-3） and x-trefoil （Z33） of the cornea were measured before surgery and 3 months following the surgery. A paired-samples t test and Pearson correlation were used for analysis. Results All Q-values increased from negative to positive after SMILE surgery and the differences were statistically significant （t=-23.558， -26.661， -28.366， -28.788， P<0.01）. Corneal HOA， Z40， Z60， Z3-1 and Z31 increased and the differences were statistically significant as well（t=-11.815， -11.813， -16.209， 6.470， 4.835， P<0.01）. However， the change in Z3-3 or Z33 was not significant （t=0.278， -1.064， P>0.05）. Among corneal higher order aberrations， a linear correlation was found between the Q-value and corneal HOA， Z40 and Z3-1 before surgery （P<0.05）. The change in corneal HOA and Z40 had a positive linear correlation with the Q-value at each diameter （HOA： r=0.554， 0.480， 0.416， 0.352， P<0.05； Z40： r=0.671， 0.577， 0.495， 0.395， P<0.05）. The difference in Z3-1 had a positive linear correlation with the Q-values at diameters 6 and 7 mm （r=0.377， 0.342， P<0.05）. The difference in Z31 had a positive linear correlation with the Q-values at diameters 6， 7 and 8 mm （r=0.436， 0.385， 0.316， P<0.05）. No linear correlation was found between the changes in the Q-values at each diameter and those of Z3-3， Z33 or Z60 （P>0.05）. There was not a linear correlation between the change in the Q-values and lens diameter （P>0.05）. Lens diameter had a negative linear correlation with the changes in HOA and Z40 （r=-0.315， -0.393， P<0.05）. No linear correlation was found between the changes in Z60， Z3-1， Z31， Z3-3， Z33（P>0.05）. Conclusion The anterior corneal asphericity changed from negative to positive and corneal higher order aberrations increased after surgery. The smaller the lens diameter， the larger the changes in HOA and Z40. There were positive linear correlations between the changes in anterior corneal asphericity and those of corneal HOA， Z40， Z3-1 and Z31 with the change in spherical aberrations having the closest correlation with the Q-value.

Key words： Femtosecond laser Small incision lenticule extraction Visual quality Q-value Higher order aberration

Corresponding Authors: Wang Yan，Email：wangyan7143@vip.sina.com

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Su Xiaolian,Wang Yan. The correlation between corneal asphericity and higher order aberrations after SMILE surgery[J]. Chinese Journal of Optometry Ophthalmology and Visual science, 2014, 16(7): 416-420.

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https://www.cjoovs.com/EN/10.3760/cma.j.issn.1674-845X.2014.07.008 OR https://www.cjoovs.com/EN/Y2014/V16/I7/416

[1]	Shah R， Shah S， Sengupta S. Results of small incision lenticule extraction： all-in-one femtosecond laser refractive surgery[J]. J Cataract Refract Surg，2011，37：127-137.
[2]	王雁，鲍锡柳，汤欣，等. 飞秒激光角膜微小切口基质透镜取出术矫正近视及近视散光的早期临床研究[J]. 中华眼科杂志，2013，49：292-298.
[3]	Bottos KM， Leite MT， Aventura-Isidro M， et al. Corneal asphericity and spherical aberration after refractive surgery[J]. J Cataract Refract Surg，2011，37：1109-1115.
[4]	Marcos S， Barbero S， Llorente L， et al. Optical response to LASIK surgery for myopia from total and corneal aberration measurements[J]. Invest Ophthalmol Vis Sci，2001，42：3349-3356.
[5]	Hersh PS， Steinert RF， Brint SF. Photorefractive keratectomy versus laser in situ keratomileusis： comparison of optical side effects. Summit PRK-LASIK Study Group[J]. Ophthalmology，2000，107：925-933.
[6]	Fan-Paul NI， Li J， Miller JS， et al. Night vision disturbances after corneal refractive surgery[J]. Surv Ophthalmol，2002，47：533-546.
[7]	Mandell RB， St Helen R. Mathematical-model of corneal contour[J]. Br J Physiol Opt，1971，26：183-197.
[8]	Buhren J， Nagy L， Yoon G， et al. The effect of the asphericity of myopic laser ablation profiles on the induction of wavefront aberrations[J]. Invest Ophthalmol Vis Sci，2010，51：2805-2812.
[9]	Wang Y， Zhao KX， He JC， et al. Ocular higher-order aberrations features analysis after corneal refractive surgery[J]. Chin Med J，2007，120：269-273.
[10]	侯杰，王雁，左彤. LASIK手术对角膜前后表面非球面性的早期影响[J]. 眼科研究，2010，28：261-266.
[11]	Kamiya K， Shimizu K， Igarashi A， et al. Comparison of visual acuity， higher-order aberrations and corneal asphericity after refractive lenticule extraction and wavefront-guided laser-assisted in situ keratomileusis for myopia[J]. Br J Ophthalmol，2013，97：968-975.
[12]	鲍锡柳，王雁，杨晓艳. 飞秒激光与机械刀制瓣LASIK术后高阶像差特征性变化对比研究[J]. 中国实用眼科杂志，2012，30：543-548.
[13]	王雁，赵堪兴. 角膜屈光手术后的高阶像差与视觉质量[J]. 中华眼科杂志，2011，47：1-5.
[14]	Calossi A. Corneal asphericity and spherical aberration[J]. J Cataract Refract Surg，2007，23：505-514.
[15]	侯杰，王雁，耿维莉，等. 近视眼角膜前、后表面不同范围非球面性及其与角膜球差的关系[J]. 中华眼视光学与视觉科学杂志，2012，14：352-356.
[16]	Arba MS， de Ortueta D. Correlation among ocular spherical aberration， corneal spherical aberration， and corneal asphericity before and after LASIK for myopic astigmatism with the SCHWIND AMARIS platform[J]. J Cataract Refract Surg，2011， 27：434-443.
[17]	Bühren J， Nagy L， Yoon G， et al. The effect of the asphericity of myopic laser ablation profiles on the induction of wavefront aberrations[J]. Invest Ophthalmol Vis Sci，2010，51：2805-2812.
[18]	Hantera M. Comparison of postoperative wavefront aberrations after NIDEK CXIII optimized aspheric transition zone treatment and OPD-guided custom aspheric treatment[J]. J Cataract Refract Surg，2009，25：922.
[19]	Yoon G， MacRae S， Williams DR， et al. Causes of spherical aberration induced by laser refractive surgery[J]. J Cataract Refract Surg，2005，31：127-135.
[20]	Oliveira CM， Ferreira A. Wavefront analysis and Zernike polynomial decomposition for evaluation of corneal optical quality[J]. J Cataract Refract Surg，2012，38：343-356.
[21]	Riau AK， Anqunawela RI. Early corneal wound healing and inflammatory responses after refractive lenticule extraction （ReLEx）[J]. Invest Ophthalmol Vis Sci，2011，52：6213-6221.
[22]	Kwon Y， Bott S. Post surgery corneal asphericity and spherical aberration due to ablation efficiency reduction and corneal remodelling in refractive surgeries[J]. Clin Ophthalmol，2009， 23：1845-1850.
[23]	Wu D， Wang Y， Zhang L， et al. The corneal biomechanical effects of small incision lenticule extraction （ReLEx smile） compared with femtosecond laser LASIK： a prospective study[J]. J Cataract Refract Surg，2014，40：954-962.
[24]	Sinha Roy A， Dupps WJ Jr， Roberts CJ. Comparison of biomechanical effects of small-incision lenticule extraction and laser in situ keratomileusis： finite-element analysis[J]. J Cataract Refract Surg，2014，40：971-980.