AIM： To compare and calculate the 3-year refractive results, higher-order aberrations （HOAs）, contrast sensitivity （CS） and dry eye parameters after small incision lenticule extraction （SMILE） and wavefront-gui...AIM： To compare and calculate the 3-year refractive results, higher-order aberrations （HOAs）, contrast sensitivity （CS） and dry eye parameters after small incision lenticule extraction （SMILE） and wavefront-guided femtosecond laser-assisted laser in situ keratomileusis （FS-LASIK） for correction of high myopia and myopic astigmatism. METHODS： In this prospective, non-randomized comparative study, 78 eyes with spherical equivalent （SE） of -8.11±1.09 diopters （D） received a SMILE surgery, and 65 eyes with SE of -8.05±1.12 D received a wavefront-guided FS-LASIK surgery with the VisuMax femtosecond laser （Carl Zeiss Meditec, Jena, Germany） for flap cutting. Visual acuity, manifest refraction, CS, HOAs, ocular surface disease index （OSDI） and tear break-up time （TBUT） were evaluated during a 3-year follow-up. RESULTS： The difference of uncorrected distance visual acuity （UDVA） postoperatively was achieved at lmo and at 3mo, whereas the difference of the mean UDVA between two groups at 3y were not statistically significant （t=-1.59, P=-0.13）. The postoperative change of SE was 0.89 D in the FS-LASIK group （t=5.76, P=0.00）, and 0.14 D in the SMILE group （t=-0.54, P=0.59） from lmo to 3y after surgery. At 3-year postoperatively, both HOAs and spherical aberrations in the SMILE group were obviously less than those in the FS-LASIK group （P=0.00）, but the coma root mean square （RMS） was higher in the SMILE group （0.59±0.26） than in the FS-LASIK group （0.29±0.14, P=0.00）. The mesopic CS values between two groups were not statistically significant at 3y postoperatively. Compared with the FS-LASIK group, lower OSDI scores and longer TBUT values were found in the SMILE group at Imo and 3mo postoperatively. With regard to safety, no eye lost any line of CDVA in both groups at 3y after surgery. CONCLUSION： Both SMILE and wavefront-guided FS- LASIK procedures provide good visual outcomes. Both procedures are effective and safe, but SMILE surgery achieve more stable long-term refractive outcome and better control of early postoperative dry eye as compared to FS-LASIK.展开更多
AIM： To compare the optical quality after implantation of implantable collamer lens（ICL） and wavefront-guided laser in situ keratomileusis（WG-LASIK）.METHODS： The study included 40 eyes of 22 patients with myopia...AIM： To compare the optical quality after implantation of implantable collamer lens（ICL） and wavefront-guided laser in situ keratomileusis（WG-LASIK）.METHODS： The study included 40 eyes of 22 patients with myopia who accepted ICL implantation and 40 eyes of 20 patients with myopia who received WG-LASIK. Before surgery and three months after surgery, the objective scattering index（OSI）, the values of modulation transfer function（MTF） cutoff frequency, Strehl ratio, and the Optical Quality Analysis System（OQAS） values（OVs） were accessed. The higher order aberrations（HOAs） data including coma, trefoil, spherical, 2^（nd） astigmatism and tetrafoil were also obtained. For patients with pupil size 〈6 mm, HOAs data were analyzed for 4 mm-pupil diameter. For patients with pupil size ≥6 mm, HOAs data were calculated for 6 mm-pupil diameter. Visual acuity, refraction, pupil size and intraocular pressures were also recorded.RESULTS： In both ICL and WG-LASIK group, significant improvements in visual acuities were found postoperatively, with a significant reduction in spherical equivalent（P〈 0.001）. After the ICL implantation, the OSI decreasedslightly from 2.34±1.92 to 2.24±1.18 with no statistical significance（P=0.62）. While in WG-LASIK group, the OSI significantly increased from 0.68±0.43 preoperatively to 0.91±0.53 postoperatively（Wilcoxon signed ranks test, P=0.000）. None of the mean MTF cutoff frequency, Strehl ratio, OVs showed statistically significant changes in both ICL and WG-LASIK groups. In the ICL group, there were no statistical differences in the total HOAs for either 4 mmpupil or 6 mm-pupil. In the WG-LASIK group, the HOA parameters increased significantly at 4 mm-pupil. The total ocular HOAs, coma, spherical and 2^（nd） astigmatism were 0.12±0.06, 0.06±0.03, 0.00±0.03, 0.02±0.01, respectively. After the operation, these values were increased into 0.16±0.07, 0.08±0.05,-0.04±0.04, 0.03±0.01 respectively（Wilcoxon signed ranks test, all P〈0.05）. At 6 mm-pupil, the induction of total HOAs was not statistically significant in the WG-LASIK group. CONCLUSION： ICL implantation has a less disturbance to optical quality than WG-LASIK. The OQAS is a valuable complementary measurement to the wavefront aberrometers in evaluating the optical quality.展开更多
AIM: To investigate the potential differences between topography-guided(TG) and wavefront-optimized(WFO) laser in situ keratomileusis(LASIK) for the treatment of myopia.METHODS: A systematic literature search was perf...AIM: To investigate the potential differences between topography-guided(TG) and wavefront-optimized(WFO) laser in situ keratomileusis(LASIK) for the treatment of myopia.METHODS: A systematic literature search was performed to determine relevant trials comparing LASIK with TG and WFO from the time of library construction to August 2020, and The PubMed, Cochrane, Web of Science, EMBASE and Chinese databases(i.e. CNKI, CBM, WAN FANG and VIP) were accessed. The data on visual acuity, refractive status and wavefront aberration were retrieved and evaluated from three to six months after surgery. STATA(version 14.0) software was used for statistical analysis. A cumulative Meta-analysis was simultaneously performed.RESULTS: Eleven studies with a total of 1425 eyes were incorporated. No statistically significant differences were evident between TG and WFO ablation in the proportion of eyes achieving an uncorrected distance visual acuity(UCVA) of 20/20 or better(P=0.377), gaining one line or more(P=0.05), postoperative cylinder(P=0.40), vertical coma(P=0.593) and horizontal coma(P=0.957). After TG ablation, the proportion of the patients’ eyes of which postoperative refraction is within ±0.5 diopter of the target refraction was significantly higher than that undergoes WFO(P=0.003). As opposed to the WFO group, manifest refraction spherical equivalent(MRSE;P=0.000) was lower, and UCVA(P=0.005) was better in the TG group. The higher-order aberrations(HOAs;P=0.000), spherical aberration(P=0.000) and coma(P=0.000) were significantly lower in TG group. The cumulative Meta-analysis illustrated that the proportion of eyes achieving UCVA of 20/20 or better, postoperative refraction within ±0.5 diopter, and MRSE has steady between the two groups.CONCLUSION: Both TG-LASIK and WFO-LASIK are safe, effective, and predictable for correcting myopia. TG-LASIK may produce fewer aberration and is more precise than WFO-LASIK.展开更多
目的观察虹膜定位联合波前像差引导的准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)术中眼球旋转的特点与规律。方法选择行虹膜定位联合波前像差引导的LASIK的近视患者560例(1117眼),其中,右眼558眼,左眼559眼。采用Zy...目的观察虹膜定位联合波前像差引导的准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)术中眼球旋转的特点与规律。方法选择行虹膜定位联合波前像差引导的LASIK的近视患者560例(1117眼),其中,右眼558眼,左眼559眼。采用Zywave波前像差仪(美国博士伦公司)采集患眼在暗室瞳孔自然散大状态下及明光小瞳孔时的虹膜数据及波前像差数据,通过网络传输,在切削角膜瓣后掀开角膜瓣前,启动虹膜定位功能,记录眼球旋转类型和度数(系统默认顺时针旋转角度为正值,逆时针旋转角度为负值)。结果双眼的外旋发生率明显大于内旋,差异均有统计学意义(均为P=0.000),右眼外旋377眼(占33.75%),左眼外旋373眼(占33.40%);双眼的旋转度:右眼-0.1°^-11.4°(平均-3.33°±2.28°),左眼0.1°~14.1°(平均3.03°±2.26°)。双眼内、外旋转度≤5.0°者共950眼(占85.05%),其中右眼内旋169眼,外旋304眼;左眼内旋170眼,外旋307眼。结论角膜行屈光手术时,从坐位的术前检查到仰卧位的屈光手术,眼球会发生内、外旋转,虹膜定位联合波前像差引导的LASIK,能将眼球内、外旋转进行准确定位。展开更多
目的探讨波前像差引导的机械法准分子激光上皮瓣下角膜磨镶术(epipolis laser in situ keratomileusis,Epi-LASIK)治疗近视的临床疗效。方法接受波前像差引导的Epi-LASIK的近视患者52例(104眼)作为试验组,同期接受常规Epi-LASIK手术的患...目的探讨波前像差引导的机械法准分子激光上皮瓣下角膜磨镶术(epipolis laser in situ keratomileusis,Epi-LASIK)治疗近视的临床疗效。方法接受波前像差引导的Epi-LASIK的近视患者52例(104眼)作为试验组,同期接受常规Epi-LASIK手术的患者54例(108眼)作为对照组,对2组的术后疗效进行比较。2组患者年龄、术前屈光状态及总高阶像差的均方根值比较差异均无统计学意义(P均>0.05)。结果术后6个月,2组间球镜与柱镜分别比较差异均无统计学意义(P均>0.05),2组间裸眼视力比较差异亦无统计学意义(P>0.05)。试验组和对照组术后裸眼视力超过术前最佳矫正视力的眼数分别为43眼(41.3%)和24眼(22.2%),试验组明显优于对照组(P<0.05)。试验组和对照组术后总高阶像差平均增加幅度分别为15.6%和38.3%,试验组术后总高阶像差的增加幅度明显小于对照组(P<0.05)。术后试验组总高阶像差的均方根值为(0.89±0.30)μm,对照组为(1.12±0.41)μm,试验组明显小于对照组(P<0.05)。术后6个月,试验组和对照组患者对术后视觉质量表示满意的分别有102眼(98.1%)和98眼(90.7%),2组相比差异有统计学意义(P<0.05)。结论波前像差引导的Epi-LASIK术后视觉质量优于常规Epi-LASIK,波前像差引导的Epi-LASIK治疗近视可以取得良好的临床疗效。展开更多
目的:评价实时虹膜识别技术应用在波前引导准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)治疗中高度近视性散光中的准确性、稳定性。方法:采用随机对照研究,接受实时虹膜识别联合波前引导LASIK手术的近视性散光患者57...目的:评价实时虹膜识别技术应用在波前引导准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)治疗中高度近视性散光中的准确性、稳定性。方法:采用随机对照研究,接受实时虹膜识别联合波前引导LASIK手术的近视性散光患者57例104眼作为试验组,接受常规波前引导LASIK手术的近视性散光患者58例107眼作为对照组,对两组患者术后1,3,6mo的裸眼视力、最佳矫正视力、散光度、散光轴向、波前像差等进行比较。结果:静态虹膜识别检测出眼球旋转偏移角度为2.61°±2.08°,动态虹膜识别检测眼球旋转变化范围为0°～5°。术后6mo时,试验组裸眼视力≥术前最佳矫正视力的患者(96眼,92.3%)多于对照组(78眼,72.9%),差异有统计学意义(P<0.01);试验组的平均散光(-0.28±0.26D)低于对照组(-0.44±0.35D),差异有统计学意义(P<0.05)。术后6mo,试验组无散光眼(49眼,47.1%)多于对照组(31眼,29.0%),差异有统计学意义(P<0.01)。当瞳孔直径为6mm时,试验组彗差的增加少于对照组,差异有统计学意义(P<0.01)。结论:实时虹膜识别技术能够有效校正LASIK术前和术中的眼球旋转偏差及瞳孔中心移位,使散光度数和轴向的治疗更加精确,同时提高视觉质量。展开更多
目的:探讨波前像差引导的飞秒激光准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)手术矫正高度近视的效果。方法:随机选取2012-10/12在重庆爱尔眼科医院行波前像差引导的飞秒激光LASIK手术的高度近视患者(近视-6.0～-10...目的:探讨波前像差引导的飞秒激光准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)手术矫正高度近视的效果。方法:随机选取2012-10/12在重庆爱尔眼科医院行波前像差引导的飞秒激光LASIK手术的高度近视患者(近视-6.0～-10.0DS,散光≤-2.0DC)32例58眼作为试验组。同期接受飞秒激光LASIK手术的高度近视患者(近视-6.0～-10.0DS,散光≤-2.0DC)28例56眼作为对照组。术后随访6mo,比较两组的裸眼视力(uncorrected visual acuity,UCVA),屈光度数,总高阶像差(high order aberrations,HOA),球差和彗差。结果:术后6mo,所有患者UCVA均≥0.8,其中UCVA≥1.0者波前组91.4%,对照组87.5%,差异无统计学意义(P=0.360);UCVA≥1.2者波前组60.3%,对照组57.1%,差异无统计学意义(P=0.729);UCVA≥1.5者波前组17.2%,对照组12.5%,差异无统计学意义(P=0.477)。波前组的彗差低于对照组,差异有统计学意义(P=0.021)。两组UCVA,等效球镜度,总HOA和球差的比较无统计学差异(P>0.05)。结论:波前像差引导的飞秒激光LASIK手术与常规飞秒激光LASIK手术相比,虽然可以降低术后彗差的产生,但在提高术后UCVA,矫正高度近视度数,降低术后HOA和球差方面没有优势。展开更多
文摘AIM： To compare and calculate the 3-year refractive results, higher-order aberrations （HOAs）, contrast sensitivity （CS） and dry eye parameters after small incision lenticule extraction （SMILE） and wavefront-guided femtosecond laser-assisted laser in situ keratomileusis （FS-LASIK） for correction of high myopia and myopic astigmatism. METHODS： In this prospective, non-randomized comparative study, 78 eyes with spherical equivalent （SE） of -8.11±1.09 diopters （D） received a SMILE surgery, and 65 eyes with SE of -8.05±1.12 D received a wavefront-guided FS-LASIK surgery with the VisuMax femtosecond laser （Carl Zeiss Meditec, Jena, Germany） for flap cutting. Visual acuity, manifest refraction, CS, HOAs, ocular surface disease index （OSDI） and tear break-up time （TBUT） were evaluated during a 3-year follow-up. RESULTS： The difference of uncorrected distance visual acuity （UDVA） postoperatively was achieved at lmo and at 3mo, whereas the difference of the mean UDVA between two groups at 3y were not statistically significant （t=-1.59, P=-0.13）. The postoperative change of SE was 0.89 D in the FS-LASIK group （t=5.76, P=0.00）, and 0.14 D in the SMILE group （t=-0.54, P=0.59） from lmo to 3y after surgery. At 3-year postoperatively, both HOAs and spherical aberrations in the SMILE group were obviously less than those in the FS-LASIK group （P=0.00）, but the coma root mean square （RMS） was higher in the SMILE group （0.59±0.26） than in the FS-LASIK group （0.29±0.14, P=0.00）. The mesopic CS values between two groups were not statistically significant at 3y postoperatively. Compared with the FS-LASIK group, lower OSDI scores and longer TBUT values were found in the SMILE group at Imo and 3mo postoperatively. With regard to safety, no eye lost any line of CDVA in both groups at 3y after surgery. CONCLUSION： Both SMILE and wavefront-guided FS- LASIK procedures provide good visual outcomes. Both procedures are effective and safe, but SMILE surgery achieve more stable long-term refractive outcome and better control of early postoperative dry eye as compared to FS-LASIK.
基金Supported by the Research Grant of Guangxi Natural Science Foundation(No.2015GXNSFCB139012No.2017GXNSFBA198320)the Research Grant of Guangxi Technology and Science Agency(No.Z2015316)
文摘AIM： To compare the optical quality after implantation of implantable collamer lens（ICL） and wavefront-guided laser in situ keratomileusis（WG-LASIK）.METHODS： The study included 40 eyes of 22 patients with myopia who accepted ICL implantation and 40 eyes of 20 patients with myopia who received WG-LASIK. Before surgery and three months after surgery, the objective scattering index（OSI）, the values of modulation transfer function（MTF） cutoff frequency, Strehl ratio, and the Optical Quality Analysis System（OQAS） values（OVs） were accessed. The higher order aberrations（HOAs） data including coma, trefoil, spherical, 2^（nd） astigmatism and tetrafoil were also obtained. For patients with pupil size 〈6 mm, HOAs data were analyzed for 4 mm-pupil diameter. For patients with pupil size ≥6 mm, HOAs data were calculated for 6 mm-pupil diameter. Visual acuity, refraction, pupil size and intraocular pressures were also recorded.RESULTS： In both ICL and WG-LASIK group, significant improvements in visual acuities were found postoperatively, with a significant reduction in spherical equivalent（P〈 0.001）. After the ICL implantation, the OSI decreasedslightly from 2.34±1.92 to 2.24±1.18 with no statistical significance（P=0.62）. While in WG-LASIK group, the OSI significantly increased from 0.68±0.43 preoperatively to 0.91±0.53 postoperatively（Wilcoxon signed ranks test, P=0.000）. None of the mean MTF cutoff frequency, Strehl ratio, OVs showed statistically significant changes in both ICL and WG-LASIK groups. In the ICL group, there were no statistical differences in the total HOAs for either 4 mmpupil or 6 mm-pupil. In the WG-LASIK group, the HOA parameters increased significantly at 4 mm-pupil. The total ocular HOAs, coma, spherical and 2^（nd） astigmatism were 0.12±0.06, 0.06±0.03, 0.00±0.03, 0.02±0.01, respectively. After the operation, these values were increased into 0.16±0.07, 0.08±0.05,-0.04±0.04, 0.03±0.01 respectively（Wilcoxon signed ranks test, all P〈0.05）. At 6 mm-pupil, the induction of total HOAs was not statistically significant in the WG-LASIK group. CONCLUSION： ICL implantation has a less disturbance to optical quality than WG-LASIK. The OQAS is a valuable complementary measurement to the wavefront aberrometers in evaluating the optical quality.
文摘AIM: To investigate the potential differences between topography-guided(TG) and wavefront-optimized(WFO) laser in situ keratomileusis(LASIK) for the treatment of myopia.METHODS: A systematic literature search was performed to determine relevant trials comparing LASIK with TG and WFO from the time of library construction to August 2020, and The PubMed, Cochrane, Web of Science, EMBASE and Chinese databases(i.e. CNKI, CBM, WAN FANG and VIP) were accessed. The data on visual acuity, refractive status and wavefront aberration were retrieved and evaluated from three to six months after surgery. STATA(version 14.0) software was used for statistical analysis. A cumulative Meta-analysis was simultaneously performed.RESULTS: Eleven studies with a total of 1425 eyes were incorporated. No statistically significant differences were evident between TG and WFO ablation in the proportion of eyes achieving an uncorrected distance visual acuity(UCVA) of 20/20 or better(P=0.377), gaining one line or more(P=0.05), postoperative cylinder(P=0.40), vertical coma(P=0.593) and horizontal coma(P=0.957). After TG ablation, the proportion of the patients’ eyes of which postoperative refraction is within ±0.5 diopter of the target refraction was significantly higher than that undergoes WFO(P=0.003). As opposed to the WFO group, manifest refraction spherical equivalent(MRSE;P=0.000) was lower, and UCVA(P=0.005) was better in the TG group. The higher-order aberrations(HOAs;P=0.000), spherical aberration(P=0.000) and coma(P=0.000) were significantly lower in TG group. The cumulative Meta-analysis illustrated that the proportion of eyes achieving UCVA of 20/20 or better, postoperative refraction within ±0.5 diopter, and MRSE has steady between the two groups.CONCLUSION: Both TG-LASIK and WFO-LASIK are safe, effective, and predictable for correcting myopia. TG-LASIK may produce fewer aberration and is more precise than WFO-LASIK.
文摘目的观察虹膜定位联合波前像差引导的准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)术中眼球旋转的特点与规律。方法选择行虹膜定位联合波前像差引导的LASIK的近视患者560例(1117眼),其中,右眼558眼,左眼559眼。采用Zywave波前像差仪(美国博士伦公司)采集患眼在暗室瞳孔自然散大状态下及明光小瞳孔时的虹膜数据及波前像差数据,通过网络传输,在切削角膜瓣后掀开角膜瓣前,启动虹膜定位功能,记录眼球旋转类型和度数(系统默认顺时针旋转角度为正值,逆时针旋转角度为负值)。结果双眼的外旋发生率明显大于内旋,差异均有统计学意义(均为P=0.000),右眼外旋377眼(占33.75%),左眼外旋373眼(占33.40%);双眼的旋转度:右眼-0.1°^-11.4°(平均-3.33°±2.28°),左眼0.1°~14.1°(平均3.03°±2.26°)。双眼内、外旋转度≤5.0°者共950眼(占85.05%),其中右眼内旋169眼,外旋304眼;左眼内旋170眼,外旋307眼。结论角膜行屈光手术时,从坐位的术前检查到仰卧位的屈光手术,眼球会发生内、外旋转,虹膜定位联合波前像差引导的LASIK,能将眼球内、外旋转进行准确定位。
文摘目的探讨波前像差引导的机械法准分子激光上皮瓣下角膜磨镶术(epipolis laser in situ keratomileusis,Epi-LASIK)治疗近视的临床疗效。方法接受波前像差引导的Epi-LASIK的近视患者52例(104眼)作为试验组,同期接受常规Epi-LASIK手术的患者54例(108眼)作为对照组,对2组的术后疗效进行比较。2组患者年龄、术前屈光状态及总高阶像差的均方根值比较差异均无统计学意义(P均>0.05)。结果术后6个月,2组间球镜与柱镜分别比较差异均无统计学意义(P均>0.05),2组间裸眼视力比较差异亦无统计学意义(P>0.05)。试验组和对照组术后裸眼视力超过术前最佳矫正视力的眼数分别为43眼(41.3%)和24眼(22.2%),试验组明显优于对照组(P<0.05)。试验组和对照组术后总高阶像差平均增加幅度分别为15.6%和38.3%,试验组术后总高阶像差的增加幅度明显小于对照组(P<0.05)。术后试验组总高阶像差的均方根值为(0.89±0.30)μm,对照组为(1.12±0.41)μm,试验组明显小于对照组(P<0.05)。术后6个月,试验组和对照组患者对术后视觉质量表示满意的分别有102眼(98.1%)和98眼(90.7%),2组相比差异有统计学意义(P<0.05)。结论波前像差引导的Epi-LASIK术后视觉质量优于常规Epi-LASIK,波前像差引导的Epi-LASIK治疗近视可以取得良好的临床疗效。
文摘目的:评价实时虹膜识别技术应用在波前引导准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)治疗中高度近视性散光中的准确性、稳定性。方法:采用随机对照研究,接受实时虹膜识别联合波前引导LASIK手术的近视性散光患者57例104眼作为试验组,接受常规波前引导LASIK手术的近视性散光患者58例107眼作为对照组,对两组患者术后1,3,6mo的裸眼视力、最佳矫正视力、散光度、散光轴向、波前像差等进行比较。结果:静态虹膜识别检测出眼球旋转偏移角度为2.61°±2.08°,动态虹膜识别检测眼球旋转变化范围为0°～5°。术后6mo时,试验组裸眼视力≥术前最佳矫正视力的患者(96眼,92.3%)多于对照组(78眼,72.9%),差异有统计学意义(P<0.01);试验组的平均散光(-0.28±0.26D)低于对照组(-0.44±0.35D),差异有统计学意义(P<0.05)。术后6mo,试验组无散光眼(49眼,47.1%)多于对照组(31眼,29.0%),差异有统计学意义(P<0.01)。当瞳孔直径为6mm时,试验组彗差的增加少于对照组,差异有统计学意义(P<0.01)。结论:实时虹膜识别技术能够有效校正LASIK术前和术中的眼球旋转偏差及瞳孔中心移位,使散光度数和轴向的治疗更加精确,同时提高视觉质量。
文摘目的:探讨波前像差引导的飞秒激光准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)手术矫正高度近视的效果。方法:随机选取2012-10/12在重庆爱尔眼科医院行波前像差引导的飞秒激光LASIK手术的高度近视患者(近视-6.0～-10.0DS,散光≤-2.0DC)32例58眼作为试验组。同期接受飞秒激光LASIK手术的高度近视患者(近视-6.0～-10.0DS,散光≤-2.0DC)28例56眼作为对照组。术后随访6mo,比较两组的裸眼视力(uncorrected visual acuity,UCVA),屈光度数,总高阶像差(high order aberrations,HOA),球差和彗差。结果:术后6mo,所有患者UCVA均≥0.8,其中UCVA≥1.0者波前组91.4%,对照组87.5%,差异无统计学意义(P=0.360);UCVA≥1.2者波前组60.3%,对照组57.1%,差异无统计学意义(P=0.729);UCVA≥1.5者波前组17.2%,对照组12.5%,差异无统计学意义(P=0.477)。波前组的彗差低于对照组,差异有统计学意义(P=0.021)。两组UCVA,等效球镜度,总HOA和球差的比较无统计学差异(P>0.05)。结论:波前像差引导的飞秒激光LASIK手术与常规飞秒激光LASIK手术相比,虽然可以降低术后彗差的产生,但在提高术后UCVA,矫正高度近视度数,降低术后HOA和球差方面没有优势。
