CAJ | 학술논문

目的：：观察不同屈光度的青少年夜间配戴角膜塑形镜后视力和对比敏感度的变化,了解其对视觉质量的影响。方法：采用自身对照研究,收集2013-03-01/2014-05-30首次在我院配戴夜戴型角膜塑形镜的青少年近视患者84例156眼,其中男40例,女44例,平均年龄12.60±2.03岁,平均等效球镜度( SE)为-3.65±0.79D。将所有患者按屈光度不同分为A组(-0.75~-2.00D),B组(-2.25~-4.00D),C组(-4.25~-6.00D)。所有患者每晚配戴8 h以上,分别于配戴前及配戴后1、6、12 mo接受裸眼视力( UCVA )、主觉验光、矫正视力( BCVA )、对比敏感度(CSF)检查,采用SPSS17.0统计学软件对相关数据进行重复测试单因素方差分析。结果：视力和等效球镜比较：A、B、C三组配戴角膜塑形镜后1、6、12mo裸眼视力明显提高,SE下降,配戴前与配戴后比较差异均具有统计学异常(P<0.05),而配戴后1、6mo与12mo比较差异无统计学意义(P>0.05)。配戴前后矫正视力比较差异无统计学意义(P>0.05)。对比敏感度比较：A、B、C三组配戴角膜塑形镜后1、6、12 mo对比敏感度各空间频率与戴镜前相比：在低空间频率(3c/d(周弧度))和高空间频率(18c/d)基本无变化,在中空间频率(6、12c/d)A、B组均表现为较戴镜前略有增加,而C组表现为较戴镜前略有降低,但戴镜前后比较差异均无统计学意义(P>0.05)。结论：夜戴型角膜塑形镜配戴能提高裸眼视力,同时对整体视觉质量并无明显影响,值得临床推广应用。
목적：：관찰불동굴광도적청소년야간배대각막소형경후시력화대비민감도적변화,료해기대시각질량적영향。방법：채용자신대조연구,수집2013-03-01/2014-05-30수차재아원배대야대형각막소형경적청소년근시환자84례156안,기중남40례,녀44례,평균년령12.60±2.03세,평균등효구경도( SE)위-3.65±0.79D。장소유환자안굴광도불동분위A조(-0.75~-2.00D),B조(-2.25~-4.00D),C조(-4.25~-6.00D)。소유환자매만배대8 h이상,분별우배대전급배대후1、6、12 mo접수라안시력( UCVA )、주각험광、교정시력( BCVA )、대비민감도(CSF)검사,채용SPSS17.0통계학연건대상관수거진행중복측시단인소방차분석。결과：시력화등효구경비교：A、B、C삼조배대각막소형경후1、6、12mo라안시력명현제고,SE하강,배대전여배대후비교차이균구유통계학이상(P<0.05),이배대후1、6mo여12mo비교차이무통계학의의(P>0.05)。배대전후교정시력비교차이무통계학의의(P>0.05)。대비민감도비교：A、B、C삼조배대각막소형경후1、6、12 mo대비민감도각공간빈솔여대경전상비：재저공간빈솔(3c/d(주호도))화고공간빈솔(18c/d)기본무변화,재중공간빈솔(6、12c/d)A、B조균표현위교대경전략유증가,이C조표현위교대경전략유강저,단대경전후비교차이균무통계학의의(P>0.05)。결론：야대형각막소형경배대능제고라안시력,동시대정체시각질량병무명현영향,치득림상추엄응용。
Abstract? AlM: To observe the changes of visual acuity and contrast sensitivity function in teenagers with different diopters after wearing overnight orthokeratology in order to understand the effects on visual quality.?METHODS:A self-controlled study was used. Eighty four young myopic subjects (156 eyes) aged 12. 60 ± 2. 03 years in which there were forty males and forty-four females with spherical equivalent(SE) -3. 65±0. 79D were recruited in the study from March 1st 2013 to May 30th 2015. Based on diopters, the subjects were divided into group A (-0. 75~-2. 00D), group B(-2. 25~-4. 00D) and group C (-4. 25 ~ -6. 00D). All the lenses were worn every night over 8 hours. Uncorrected visual acuity ( UCVA ) , subjective refraction,best corrected visual acuity(BCVA), contrast sensitivity function were examined before, 1, 6, 12mo after the initiation of orthokeratology. The database was analyzed by SPSS17. 0 using one-way ANOVA.?RESULT:1 ) Comparison between risual acuity and SE:The UCVA improved significantly and SE decreased after wearing orthokeratology lens 1, 6, 12mo in 3 groups, showing significant decline in comparison with that before orthokeratology ( P < 0. 05 ). There was no significant change among 1,6,12mo after wearing orthokeratology( P>0. 05). There was no significant change in BCVA (P>0. 05). 2 ) Comparison on contrast sensitivity function:Contrast sensitivity function at all spatial frequencies in 3 groups 1, 6, 12mo after wearing lenses compared with those before wearing: There was no change before and after wearing at the low spatial frequency(3c/d) and the high spatial frequency (18c/d), but slight increases in group A and group B in the spatial frequency(6c/d, 12c/d) after wearing lenses. There were slight decreases in group C at all spatial frequencies after wearing. But there was no statistical significance between before and after wearing in all three groups(P>0. 05).?CONCLUSlON:Overnight orthokeratology can improve UCVA and has no obvious effect on the overall visual quality. lt deserves to be applied and spreaded in clinical practice.