中国实用眼科杂志
中國實用眼科雜誌
중국실용안과잡지
CHINESE JOURNAL OF PRACTICAL OPHTHALMOLOGY
2011年
10期
1006-1010
,共5页
王诗园%戴锦晖%褚仁远%周行涛
王詩園%戴錦暉%褚仁遠%週行濤
왕시완%대금휘%저인원%주행도
准分子激光角膜切削术(PRK)%近视%远期疗效
準分子激光角膜切削術(PRK)%近視%遠期療效
준분자격광각막절삭술(PRK)%근시%원기료효
Photorefractive keratectomy%Myopia%Long-term outcome
目的 评价准分子激光角膜切削术(PRK)治疗近视远期临床疗效.方法 回顾性分析23例(45只眼)PRK术后8年以上(8.78±1.54)年的视力、屈光度、对比敏感度、波前像差及haze情况.分低度近视(＜-3D)、中度近视(≥-3D且＜-6D)和高度近视(≥-6D)三组比较.结果 低度近视组术后裸眼视力(UCVA)均≥1.0,中度近视组术后UCVA≥0.5和≥1.0者分别为:23只眼(85.19％),14只眼(51.85％)；高度近视组达0.5以上为4只眼(40％).术后最佳矫正视力下降者三组眼数分别为0、5(18.52％)和3(30％).术后屈光度在预期矫正值±1D以内者三组眼数分别为8(100％)、17( 62.96％)、3(30％).中低度近视组对比敏感度均正常,高度近视组仅1只眼在正常值范围内.术后总高阶像差均方根三组间差异明显(P＜0.05),其中球差增大明显,且随矫正度数增加而增大(P＜0.05).haze低度近视组无,中度组仅1只眼(3.70％)为0.5级,高度组0.5级2只眼,1级2只眼.结论 PRK治疗中低度近视远期疗效满意,治疗高度近视远期效果欠佳,haze可在PRK术后长期存在,尤其在高度近视眼中.
目的 評價準分子激光角膜切削術(PRK)治療近視遠期臨床療效.方法 迴顧性分析23例(45隻眼)PRK術後8年以上(8.78±1.54)年的視力、屈光度、對比敏感度、波前像差及haze情況.分低度近視(＜-3D)、中度近視(≥-3D且＜-6D)和高度近視(≥-6D)三組比較.結果 低度近視組術後裸眼視力(UCVA)均≥1.0,中度近視組術後UCVA≥0.5和≥1.0者分彆為:23隻眼(85.19％),14隻眼(51.85％)；高度近視組達0.5以上為4隻眼(40％).術後最佳矯正視力下降者三組眼數分彆為0、5(18.52％)和3(30％).術後屈光度在預期矯正值±1D以內者三組眼數分彆為8(100％)、17( 62.96％)、3(30％).中低度近視組對比敏感度均正常,高度近視組僅1隻眼在正常值範圍內.術後總高階像差均方根三組間差異明顯(P＜0.05),其中毬差增大明顯,且隨矯正度數增加而增大(P＜0.05).haze低度近視組無,中度組僅1隻眼(3.70％)為0.5級,高度組0.5級2隻眼,1級2隻眼.結論 PRK治療中低度近視遠期療效滿意,治療高度近視遠期效果欠佳,haze可在PRK術後長期存在,尤其在高度近視眼中.
목적 평개준분자격광각막절삭술(PRK)치료근시원기림상료효.방법 회고성분석23례(45지안)PRK술후8년이상(8.78±1.54)년적시력、굴광도、대비민감도、파전상차급haze정황.분저도근시(＜-3D)、중도근시(≥-3D차＜-6D)화고도근시(≥-6D)삼조비교.결과 저도근시조술후라안시력(UCVA)균≥1.0,중도근시조술후UCVA≥0.5화≥1.0자분별위:23지안(85.19％),14지안(51.85％)；고도근시조체0.5이상위4지안(40％).술후최가교정시력하강자삼조안수분별위0、5(18.52％)화3(30％).술후굴광도재예기교정치±1D이내자삼조안수분별위8(100％)、17( 62.96％)、3(30％).중저도근시조대비민감도균정상,고도근시조부1지안재정상치범위내.술후총고계상차균방근삼조간차이명현(P＜0.05),기중구차증대명현,차수교정도수증가이증대(P＜0.05).haze저도근시조무,중도조부1지안(3.70％)위0.5급,고도조0.5급2지안,1급2지안.결론 PRK치료중저도근시원기료효만의,치료고도근시원기효과흠가,haze가재PRK술후장기존재,우기재고도근시안중.
Objective To evaluate the long-term outcomes of excimer laser myopic photorefractive keratectomy (PRK).Methods This retrospective study mainly measured patients' visual acuity,refractive predictability more than 8 years (8.78± 1.54 yrs) after PRK.The total 23 patients (45 eyes)were divided into 3 groups:low myopia (＜-3D),moderate myopia (≥-3D and ＜-6D),high myopia (≥-6D).Results Postoperative UCVA ≥20/20 was noted in 7 eyes (100％) of low myopia,14 eyes (51.85％) of moderate myopia.5 eyes (18.52％) in moderate myopia and 3 eyes (30％) in high myopia lost ≥l-line of BCVA.And 8 eyes (100％),17 eyes (62.96％),3 eyes (30％) were within ± 1D of attempted correction respectively.The mean RMS of high order aberration was significant different among the three groups postoperatively.One eye (3.7％) in moderate myopia,two eyes (20％) in high myopia had haze grade of 0.5 and haze grade of 1 was noted in two eyes in high myopia.Conclusions PRK has a satisfactory effect for low to moderate myopia but less satisfactory result for high myopia.Corneal haze can still exist in the long term,especially in high myopia.
