中国实用眼科杂志
中國實用眼科雜誌
중국실용안과잡지
CHINESE JOURNAL OF PRACTICAL OPHTHALMOLOGY
2012年
1期
73-77
,共5页
亲水性角膜接触镜%高阶像差%Zernike系数
親水性角膜接觸鏡%高階像差%Zernike繫數
친수성각막접촉경%고계상차%Zernike계수
Soft contact lens%Wavefront aberrations%Zernike aberration
目的 探讨球面和非球面亲水性角膜接触镜对人眼高阶像差的影响,以指导亲水性角膜接触镜的验配.方法 前瞻性系列病例研究.收集验配亲水性角膜接触镜的屈光不正患者52例,按照随机的原则分为两组,每组26例52只眼,一组配戴球面亲水性角膜接触镜；另一组配戴非球面亲水性角膜接触镜.戴镜前后检测角膜地形图和波振面像差.采用SPSS 13.0统计学软件对各高阶波像差RMS值进行数据处理.对球面组和非球面组裸眼和戴镜后各项像差的比较采用配对设计资料的t检验,对于两组戴镜后各项像差变化的比较采用成组设计资料两样本均数比较的t检验.检验显著性标准a =0.05.结果 球面镜片组戴镜后总高阶像差(High)、慧差(T.Coma)、三叶草(T.Trefoil)、四叶草(T.4Foil)、球差(T.Sph)、散光像差(HiAstig) RMS值均增加,各项高阶像差的差异均有统计学意义(P＜0.05).非球面镜片组戴镜后仅慧差和三叶草RMS值增加,差异有统计学意义(P＜0.05).球面镜片组总高阶像差、四叶草、球差、散光像差RMS值的增量较非球面组增量大,差异有统计学意义(P＜0.05).结论 球面亲水性角膜接触镜较非球面镜片引入更多高阶像差,非球面亲水性角膜接触镜的成像质量优于传统球面亲水性角膜接触镜.
目的 探討毬麵和非毬麵親水性角膜接觸鏡對人眼高階像差的影響,以指導親水性角膜接觸鏡的驗配.方法 前瞻性繫列病例研究.收集驗配親水性角膜接觸鏡的屈光不正患者52例,按照隨機的原則分為兩組,每組26例52隻眼,一組配戴毬麵親水性角膜接觸鏡；另一組配戴非毬麵親水性角膜接觸鏡.戴鏡前後檢測角膜地形圖和波振麵像差.採用SPSS 13.0統計學軟件對各高階波像差RMS值進行數據處理.對毬麵組和非毬麵組裸眼和戴鏡後各項像差的比較採用配對設計資料的t檢驗,對于兩組戴鏡後各項像差變化的比較採用成組設計資料兩樣本均數比較的t檢驗.檢驗顯著性標準a =0.05.結果 毬麵鏡片組戴鏡後總高階像差(High)、慧差(T.Coma)、三葉草(T.Trefoil)、四葉草(T.4Foil)、毬差(T.Sph)、散光像差(HiAstig) RMS值均增加,各項高階像差的差異均有統計學意義(P＜0.05).非毬麵鏡片組戴鏡後僅慧差和三葉草RMS值增加,差異有統計學意義(P＜0.05).毬麵鏡片組總高階像差、四葉草、毬差、散光像差RMS值的增量較非毬麵組增量大,差異有統計學意義(P＜0.05).結論 毬麵親水性角膜接觸鏡較非毬麵鏡片引入更多高階像差,非毬麵親水性角膜接觸鏡的成像質量優于傳統毬麵親水性角膜接觸鏡.
목적 탐토구면화비구면친수성각막접촉경대인안고계상차적영향,이지도친수성각막접촉경적험배.방법 전첨성계렬병례연구.수집험배친수성각막접촉경적굴광불정환자52례,안조수궤적원칙분위량조,매조26례52지안,일조배대구면친수성각막접촉경；령일조배대비구면친수성각막접촉경.대경전후검측각막지형도화파진면상차.채용SPSS 13.0통계학연건대각고계파상차RMS치진행수거처리.대구면조화비구면조라안화대경후각항상차적비교채용배대설계자료적t검험,대우량조대경후각항상차변화적비교채용성조설계자료량양본균수비교적t검험.검험현저성표준a =0.05.결과 구면경편조대경후총고계상차(High)、혜차(T.Coma)、삼협초(T.Trefoil)、사협초(T.4Foil)、구차(T.Sph)、산광상차(HiAstig) RMS치균증가,각항고계상차적차이균유통계학의의(P＜0.05).비구면경편조대경후부혜차화삼협초RMS치증가,차이유통계학의의(P＜0.05).구면경편조총고계상차、사협초、구차、산광상차RMS치적증량교비구면조증량대,차이유통계학의의(P＜0.05).결론 구면친수성각막접촉경교비구면경편인입경다고계상차,비구면친수성각막접촉경적성상질량우우전통구면친수성각막접촉경.
Objective To evaluate and compare the wavefront characteristics of normal eyes with and without hydrogen spherical and aspherical soft contact lenses for correction of myopia.Methods Higher order aberrations (HOA) of 52 eyes of 26 spherical soft contact lens users and 52 eyes of 26 aspherical soft contact lens users who had no ocular diseases other than myopia were quantified with a Nidek Marco three dimensional Wave wavefront analyzer.Zemike's polynomial was used to describe the wavefront measurements.Root mean square (RMS) values of the total HOAs,total coma,total trefoil and total spherical aberrations were obtained in the same eyes with and without soft contact lenses.Paired sample t-test was used to analyze the data. Results RMS values of the High,T.Coma,T.Trefoil,T.4Foil,T.Sph,HiAstig increased significantly after fitting with spherical soft contact lenses (P ＜0.05).RMS values of High,T.Coma,T.Trefoil increased significantly after fitting with aspherical soft contact lenses (P ＜0.05).There was significant difference among High,T.4Foil,T.Sph,HiAstig in the aberrations changes of spherical and aspherical Soft Contact Lens (P ＜0.05). Conclusions Wavefront analysis show that spherical soft contact lenses for myopia induce more significant increase in total HOA than aspherical soft contact lenses.
