中国实用眼科杂志
中國實用眼科雜誌
중국실용안과잡지
CHINESE JOURNAL OF PRACTICAL OPHTHALMOLOGY
2012年
8期
941-944
,共4页
眼球旋转%准分子激光原位角膜磨镶术%对比敏感度%散光
眼毬鏇轉%準分子激光原位角膜磨鑲術%對比敏感度%散光
안구선전%준분자격광원위각막마양술%대비민감도%산광
Cyclotorsion%LASIK%CSF%Astigmatism
目的 探讨术中头位偏斜和眼球旋转导致散光轴位变化对常规准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)手术效果的影响.方法 临床病人自身对照研究.对在解放军180医院眼科准备行LASIK的患者,经详细检查选取无眼部疾病、术前矫正视力1.0、双眼等效球镜度数差别＜-1.00 D、双眼散光均＞-1.50D的患者30例,采用自身对照法:1只眼坐位视远时标记角膜水平和垂直轴位、术中调整,1只眼按常规卧位标记,对两眼术后6个月的视力、残余屈光度数和对比敏感度(contrast sensitivity function,CSF)进行配对t检验.结果 两眼术后在夜眩光下3.0 c/d(t =2.268,P=0.031)和夜眩光下6.0 c/d(t=2.649,P=0.013)2种空间频率的CSF差异有统计学意义.结论 对于＞-1.50 D的散光患者,术中头位偏斜和卧位眼球旋转造成激光实际切削散光轴位与坐位视远时验光所确定散光轴位的误差会影响术后视觉质量,最好在坐位视远时标记角膜水平和垂直轴位,术中调整,提高术后视觉质量.
目的 探討術中頭位偏斜和眼毬鏇轉導緻散光軸位變化對常規準分子激光原位角膜磨鑲術(laser in situ keratomileusis,LASIK)手術效果的影響.方法 臨床病人自身對照研究.對在解放軍180醫院眼科準備行LASIK的患者,經詳細檢查選取無眼部疾病、術前矯正視力1.0、雙眼等效毬鏡度數差彆＜-1.00 D、雙眼散光均＞-1.50D的患者30例,採用自身對照法:1隻眼坐位視遠時標記角膜水平和垂直軸位、術中調整,1隻眼按常規臥位標記,對兩眼術後6箇月的視力、殘餘屈光度數和對比敏感度(contrast sensitivity function,CSF)進行配對t檢驗.結果 兩眼術後在夜眩光下3.0 c/d(t =2.268,P=0.031)和夜眩光下6.0 c/d(t=2.649,P=0.013)2種空間頻率的CSF差異有統計學意義.結論 對于＞-1.50 D的散光患者,術中頭位偏斜和臥位眼毬鏇轉造成激光實際切削散光軸位與坐位視遠時驗光所確定散光軸位的誤差會影響術後視覺質量,最好在坐位視遠時標記角膜水平和垂直軸位,術中調整,提高術後視覺質量.
목적 탐토술중두위편사화안구선전도치산광축위변화대상규준분자격광원위각막마양술(laser in situ keratomileusis,LASIK)수술효과적영향.방법 림상병인자신대조연구.대재해방군180의원안과준비행LASIK적환자,경상세검사선취무안부질병、술전교정시력1.0、쌍안등효구경도수차별＜-1.00 D、쌍안산광균＞-1.50D적환자30례,채용자신대조법:1지안좌위시원시표기각막수평화수직축위、술중조정,1지안안상규와위표기,대량안술후6개월적시력、잔여굴광도수화대비민감도(contrast sensitivity function,CSF)진행배대t검험.결과 량안술후재야현광하3.0 c/d(t =2.268,P=0.031)화야현광하6.0 c/d(t=2.649,P=0.013)2충공간빈솔적CSF차이유통계학의의.결론 대우＞-1.50 D적산광환자,술중두위편사화와위안구선전조성격광실제절삭산광축위여좌위시원시험광소학정산광축위적오차회영향술후시각질량,최호재좌위시원시표기각막수평화수직축위,술중조정,제고술후시각질량.
Objective To research the effect of astigmatic axes' changes by deviation of head and cyclotorsion in laser in situ keratomileusis (LASIK). Methods Thirty patients without ocular diseases whose binocular astigmatic degrees were greater than -1.50D and difference between binocular spherical equivalents were smaller than -1.00D were included.All eyes' best corrected vision were better than 1.0.Each case was chosen one eye into experiment group (marked horizontal and vertical axis in seated position and regulated in surgery) and the other eye into control group at random.The visual acuity,astigmatic degrees and contrast sensitivity function (CSF) of both eyes were analyzed by Paired-samples t test 6 months after LASIK. Results CSF of 3.0c·d-1 (t=2.268,P =0.031) and 6.0 c·d-1 (t=2.649,P =0.013) spatial frequency at night with glare revealed a statistically difference between both eyes. Conclusions Astigmatic axes' changes by deviation of head and cyclotorsion affect the visual quality in eyes which astigmatic degrees were greater than -1.50D after LASIK.
