中华眼视光学与视觉科学杂志
中華眼視光學與視覺科學雜誌
중화안시광학여시각과학잡지
CHINESE JOURNAL OF OPTOMETRY OPHTHALMOLOGY AND VISUAL SCIENCE
2013年
3期
142-145
,共4页
孙丽霞%熊露%张日平%张铭志
孫麗霞%熊露%張日平%張銘誌
손려하%웅로%장일평%장명지
Pentacam%iTrace%Orbscan Ⅱz%Q值%屈光,眼
Pentacam%iTrace%Orbscan Ⅱz%Q值%屈光,眼
Pentacam%iTrace%Orbscan Ⅱz%Q치%굴광,안
Pentacam%iTrace%Orbscan Ⅱz%Q value%Refraction,ocular
目的 比较Pentacam、iTrace和OrbscanⅡz测量近视眼角膜前表面Q值和屈光力的差异,评估3种方法的一致性.方法 横断面研究.选择100例(100眼)近视患者.用Pentacam、iTrace和OrbscanⅡz测量同一患者角膜前表面的Q值和平均Sim K值.用方差分析来比较测量结果,用Bland-Altman法评价测量的一致性.结果 Pentacam、iTrace和OrbscanⅡz测得Q值分别为-0.09±0.12、-0.09±0.09和-0.18±0.10,OrbscanⅡz测得到Q值比Pentacam和iTrace负值更大(F=43.06,P<0.01).Q值测量中,iTrace和OrbscanⅡz比较,95%一致性界限较窄,为-0.08~0.26; iTrace和Pentacam比较,95%一致性界限较宽,为-0.23~0.23.Pentacam、iTrace和OrbscanⅡz测得平均Sim K值分别为(43.34±1.37)D、(43.30±1.35)D和(43.56±1.36) D; OrbscanⅡz测量平均Sim K值比Pentacam和iTrace略大,差异有统计学意义(F=23.25,P<0.01).平均SimK测量中,iTrace和Pentacam比较,95%一致性界限较窄,为-0.68~0.59 D; iTrace和OrbscanⅡz比较,95%一致性界限较宽,为-1.15~0.63 D.结论 Pentacam 、iTrace和orbscanⅡz测量近视眼角膜前表面Q值和平均SimK值有差别.测量Q值时3种仪器一致性较差;测量平均SimK值时Pentacam和iTrace一致性较好,可以互相参考.
目的 比較Pentacam、iTrace和OrbscanⅡz測量近視眼角膜前錶麵Q值和屈光力的差異,評估3種方法的一緻性.方法 橫斷麵研究.選擇100例(100眼)近視患者.用Pentacam、iTrace和OrbscanⅡz測量同一患者角膜前錶麵的Q值和平均Sim K值.用方差分析來比較測量結果,用Bland-Altman法評價測量的一緻性.結果 Pentacam、iTrace和OrbscanⅡz測得Q值分彆為-0.09±0.12、-0.09±0.09和-0.18±0.10,OrbscanⅡz測得到Q值比Pentacam和iTrace負值更大(F=43.06,P<0.01).Q值測量中,iTrace和OrbscanⅡz比較,95%一緻性界限較窄,為-0.08~0.26; iTrace和Pentacam比較,95%一緻性界限較寬,為-0.23~0.23.Pentacam、iTrace和OrbscanⅡz測得平均Sim K值分彆為(43.34±1.37)D、(43.30±1.35)D和(43.56±1.36) D; OrbscanⅡz測量平均Sim K值比Pentacam和iTrace略大,差異有統計學意義(F=23.25,P<0.01).平均SimK測量中,iTrace和Pentacam比較,95%一緻性界限較窄,為-0.68~0.59 D; iTrace和OrbscanⅡz比較,95%一緻性界限較寬,為-1.15~0.63 D.結論 Pentacam 、iTrace和orbscanⅡz測量近視眼角膜前錶麵Q值和平均SimK值有差彆.測量Q值時3種儀器一緻性較差;測量平均SimK值時Pentacam和iTrace一緻性較好,可以互相參攷.
목적 비교Pentacam、iTrace화OrbscanⅡz측량근시안각막전표면Q치화굴광력적차이,평고3충방법적일치성.방법 횡단면연구.선택100례(100안)근시환자.용Pentacam、iTrace화OrbscanⅡz측량동일환자각막전표면적Q치화평균Sim K치.용방차분석래비교측량결과,용Bland-Altman법평개측량적일치성.결과 Pentacam、iTrace화OrbscanⅡz측득Q치분별위-0.09±0.12、-0.09±0.09화-0.18±0.10,OrbscanⅡz측득도Q치비Pentacam화iTrace부치경대(F=43.06,P<0.01).Q치측량중,iTrace화OrbscanⅡz비교,95%일치성계한교착,위-0.08~0.26; iTrace화Pentacam비교,95%일치성계한교관,위-0.23~0.23.Pentacam、iTrace화OrbscanⅡz측득평균Sim K치분별위(43.34±1.37)D、(43.30±1.35)D화(43.56±1.36) D; OrbscanⅡz측량평균Sim K치비Pentacam화iTrace략대,차이유통계학의의(F=23.25,P<0.01).평균SimK측량중,iTrace화Pentacam비교,95%일치성계한교착,위-0.68~0.59 D; iTrace화OrbscanⅡz비교,95%일치성계한교관,위-1.15~0.63 D.결론 Pentacam 、iTrace화orbscanⅡz측량근시안각막전표면Q치화평균SimK치유차별.측량Q치시3충의기일치성교차;측량평균SimK치시Pentacam화iTrace일치성교호,가이호상삼고.
Objective To compare the myopic anterior corneal surface measurements of the Q value and corneal power provided by Pentacam,iTrace and Orbscan Ⅱ z and evaluate the agreement among the 3 methods.Methods This was a cross-sectional study.One hundred eyes were chosen from 100 myopic patients and the Q value and mean Sim K of the anterior corneal surface was measured by Pentacam,iTrace and Orbscan Ⅱ z in the same patient's eye.Measurement results were compared using analysis of variance and agreement among the measurements was assessed using Bland-Altman plots.Results The Q value measurements were-0.090.12,-0.09±0.09,and-0.18±0.10 with Pentacam,iTrace and Orbscan Ⅱ z,respectively.The Q value measurements with Orbscan Ⅱ z were lower than those with Pentacam and iTrace (F=43.06,P<0.01).For the Q value measurements,the 95% limits of agreement (LoA) was small between iTrace and Orbscan Ⅱz (from-0.08 to 0.26)and the 95% LoA was large between iTrace and Pentacam (from-0.23 to 0.23).The respective mean Sim K measurements were 43.34±1.37 D,43.30±1.35 D and 43.56±1.36 D with Pentacam,iTrace and Orbscan Ⅱ z.The mean Sim K measurements with Orbscan Ⅱ z were greater than that with Pentacam and iTrace (F=23.25,P<0.01).For the mean Sim K measurements,the 95% LoA was small between iTrace and Pentacam (from-0.68 to 0.59 D) and the 95% LoA was large between iTrace and Orbscan Ⅱz (from-1.15 D to 0.63 D).Conclusion Measurements of Q value and mean Sim K of the anterior corneal surface of myopes showed statistically significant differences among the 3 instruments.The agreement among the 3 instruments was not comparable for Q value measurements.The agreement between iTrace and Pentacam had comparable results for mean Sim K,and can refer to one another.