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
2010年
4期
256-259
,共4页
赵银莹%李军花%常平骏%赵云娥
趙銀瑩%李軍花%常平駿%趙雲娥
조은형%리군화%상평준%조운아
对比敏感度%视力%晶体,人工%非球面%多焦点
對比敏感度%視力%晶體,人工%非毬麵%多焦點
대비민감도%시력%정체,인공%비구면%다초점
Contrast sensitivity%Visual acuity%Lenses,intraocular%Aspheric%Multifocal
目的 分析非球面多焦点人工晶状体(MIOL)[ReSTOR MIOL(SN6AD3)]植入眼在不同背景亮度不同对比度下的视功能.方法 采用前瞻性研究.2009年2月至2009年7月行白内障超声乳化吸除并植入SN6AD3且随访资料完整的病例26例(42眼),术后6个月在最佳远矫正状态下,采用多功能电子视力测量仪(MFVA-100)测试不同背景亮度(250、85、25 cd/m2)下不同对比度(100%、25%、10%、5%)视标的LogMAR视力.采用Dunnett's T3多重比较法对所得视力进行统计分析.结果 在250 cd/m2背景亮度下,不同对比度(100%、25%、10%、5%)视力平均值分别为0.01、0.23、0.40、0.62;85 cd/m2背景亮度下为0.02、0.26、0.46、0.74;25 cd/m2背景亮度下为0.08、0.32、0.49、0.63;在这3种背景亮度下,视力随着对比度下降而下降,差异有统计学意义(P均＜0.05).同一对比度视标,不同背景亮度(250、85、25 cd/m2)下的视力采用Dunnett's T3多重比较法分析,结果示差异无统计学意义(P均＞0.05).结论 植入非球面ReSTOR MIOL(SN6AD3)患者无论在高亮(250 cd/m2)、标准(85 cd/m2)、中间(25 cd/m2)背景亮度下均可获得满意的视力.视标的对比度对视力的影响较背景亮度更大.
目的 分析非毬麵多焦點人工晶狀體(MIOL)[ReSTOR MIOL(SN6AD3)]植入眼在不同揹景亮度不同對比度下的視功能.方法 採用前瞻性研究.2009年2月至2009年7月行白內障超聲乳化吸除併植入SN6AD3且隨訪資料完整的病例26例(42眼),術後6箇月在最佳遠矯正狀態下,採用多功能電子視力測量儀(MFVA-100)測試不同揹景亮度(250、85、25 cd/m2)下不同對比度(100%、25%、10%、5%)視標的LogMAR視力.採用Dunnett's T3多重比較法對所得視力進行統計分析.結果 在250 cd/m2揹景亮度下,不同對比度(100%、25%、10%、5%)視力平均值分彆為0.01、0.23、0.40、0.62;85 cd/m2揹景亮度下為0.02、0.26、0.46、0.74;25 cd/m2揹景亮度下為0.08、0.32、0.49、0.63;在這3種揹景亮度下,視力隨著對比度下降而下降,差異有統計學意義(P均＜0.05).同一對比度視標,不同揹景亮度(250、85、25 cd/m2)下的視力採用Dunnett's T3多重比較法分析,結果示差異無統計學意義(P均＞0.05).結論 植入非毬麵ReSTOR MIOL(SN6AD3)患者無論在高亮(250 cd/m2)、標準(85 cd/m2)、中間(25 cd/m2)揹景亮度下均可穫得滿意的視力.視標的對比度對視力的影響較揹景亮度更大.
목적 분석비구면다초점인공정상체(MIOL)[ReSTOR MIOL(SN6AD3)]식입안재불동배경량도불동대비도하적시공능.방법 채용전첨성연구.2009년2월지2009년7월행백내장초성유화흡제병식입SN6AD3차수방자료완정적병례26례(42안),술후6개월재최가원교정상태하,채용다공능전자시력측량의(MFVA-100)측시불동배경량도(250、85、25 cd/m2)하불동대비도(100%、25%、10%、5%)시표적LogMAR시력.채용Dunnett's T3다중비교법대소득시력진행통계분석.결과 재250 cd/m2배경량도하,불동대비도(100%、25%、10%、5%)시력평균치분별위0.01、0.23、0.40、0.62;85 cd/m2배경량도하위0.02、0.26、0.46、0.74;25 cd/m2배경량도하위0.08、0.32、0.49、0.63;재저3충배경량도하,시력수착대비도하강이하강,차이유통계학의의(P균＜0.05).동일대비도시표,불동배경량도(250、85、25 cd/m2)하적시력채용Dunnett's T3다중비교법분석,결과시차이무통계학의의(P균＞0.05).결론 식입비구면ReSTOR MIOL(SN6AD3)환자무론재고량(250 cd/m2)、표준(85 cd/m2)、중간(25 cd/m2)배경량도하균가획득만의적시력.시표적대비도대시력적영향교배경량도경대.
Objective To evaluate the differences in contrast visual acuity (VA) under different background illuminations in patients who had been implanted with the ReSTOR aspheric multifocal intraocular lens (MIOL)(SN6AD3). Methods This was a prospective study. Forty-two eyes of 26 patients who had received ReSTOR MIOL (SN6AD3) implantation after cataract extraction were enrolled. Six months postoperatively, best corrected distance VA was measured at 4 contrast levels (100%, 25%, 10%, 5%) under 3 background illumination levels (250 cd/m2, 85 cd/m2, 25 cd/m2)using a multi-functional visual acuity tester (MFVA-100). Dunnett's T3 multiple comparison was used for statistical anaylysis. Results The mean VA at the 4 contrast levels (100%, 25%, 10%, 5%)under 250 cd/m2 background illumination were 0.01, 0.23, 0.40 and 0.62; under 85 cd/m2, the mean VA were 0.02, 0.26, 0.46 and 0.74; under 25 cd/m2, the mean VA were 0.08, 0.32, 0.49 and 0.63. At the same background illumination level, there was a statistically significant decrease in VA with a decrease in contrast level (P＜0.05). While at the same contrast level, there were no statistically significant differences in VA at different background illuminations (250 cd/m2, 85 cd/m2,25 cd/m2)(P＞0.05). Conclusion Implantation of the ReSTOR MIOL (SN6AD3) offers excellent VA under high luminance (250 cd/m2), normal luminance (85 cd/m2) and moderate luminance (25 cd/m2).VA is affected much more by the contrast of the visual target rather than background illumination.
