国际眼科杂志
國際眼科雜誌
국제안과잡지
INTERNATIONAL JOURNAL OF OPHTHALMOLOGY
2009年
6期
1016-1019
,共4页
多焦视皮质诱发电位%白内障%最佳矫正视力
多焦視皮質誘髮電位%白內障%最佳矯正視力
다초시피질유발전위%백내장%최가교정시력
multifocal visual evoked potential%cataract%best corrected visual acuityDOI:10.3969/j.issn.1672-5123.2009.06.002
目的:评价术前多焦视皮质诱发电位(multifocal visual evoked potential,mVEP)检查对白内障术后视力的预测价值.方法:随机选取白内障患者共52例60眼,其中老年性白内障27例30眼,合并青光眼的白内障25例30眼(青光眼均为慢性闭角型缓解期或慢性进行期),术前对其行mVEP检查,另取正常对照组30眼.所有患者均行超声乳化联合折叠人工晶状体植入术.患者于术后1wk;1,3mo复查最佳矫正视力(best corrected visual acuity,BCVA).结果:正常对照组mVEP检测平均主波振幅和潜伏期分别是183±11nV、95±8ms,老年性白内障组平均主波振幅和潜伏期分别是177±10nV、96±8ms,2组在统计学上无显著性差异(P>0.05);合并青光眼的白内障组平均主波振幅和潜伏期分别是138±7nV、99±6ms,与正常对照组及老年性白内障组均存在显著性差异(P<0.05);白内障超声乳化联合人工晶状体植入术后BCVA≥0.8者,无明显眼底视功能改变,其mVEP中心位点主波振幅276±11nV和潜伏期93±8ms与正常对照组无显著性差异(P>0.05);而术后BCVA<0.3者,眼底视功能检查有明显改变(术后检查证实),其mVEP中心位点主波振幅221±6nV,潜伏期105±7ms,与正常对照组差异显著(P<0.05).结论:白内障术前mVEP振幅和潜伏期的改变可用来客观判断眼底视功能损害及预测术后视力.术前mVEP正常者高度提示术后视力预后良好,而mVEP检查结果变化显著,提示伴有眼底视功能损害,术后BCVA差.因此术前mVEP检查可作为预测白内障术后视力的一种有效、客观的检查方法.
目的:評價術前多焦視皮質誘髮電位(multifocal visual evoked potential,mVEP)檢查對白內障術後視力的預測價值.方法:隨機選取白內障患者共52例60眼,其中老年性白內障27例30眼,閤併青光眼的白內障25例30眼(青光眼均為慢性閉角型緩解期或慢性進行期),術前對其行mVEP檢查,另取正常對照組30眼.所有患者均行超聲乳化聯閤摺疊人工晶狀體植入術.患者于術後1wk;1,3mo複查最佳矯正視力(best corrected visual acuity,BCVA).結果:正常對照組mVEP檢測平均主波振幅和潛伏期分彆是183±11nV、95±8ms,老年性白內障組平均主波振幅和潛伏期分彆是177±10nV、96±8ms,2組在統計學上無顯著性差異(P>0.05);閤併青光眼的白內障組平均主波振幅和潛伏期分彆是138±7nV、99±6ms,與正常對照組及老年性白內障組均存在顯著性差異(P<0.05);白內障超聲乳化聯閤人工晶狀體植入術後BCVA≥0.8者,無明顯眼底視功能改變,其mVEP中心位點主波振幅276±11nV和潛伏期93±8ms與正常對照組無顯著性差異(P>0.05);而術後BCVA<0.3者,眼底視功能檢查有明顯改變(術後檢查證實),其mVEP中心位點主波振幅221±6nV,潛伏期105±7ms,與正常對照組差異顯著(P<0.05).結論:白內障術前mVEP振幅和潛伏期的改變可用來客觀判斷眼底視功能損害及預測術後視力.術前mVEP正常者高度提示術後視力預後良好,而mVEP檢查結果變化顯著,提示伴有眼底視功能損害,術後BCVA差.因此術前mVEP檢查可作為預測白內障術後視力的一種有效、客觀的檢查方法.
목적:평개술전다초시피질유발전위(multifocal visual evoked potential,mVEP)검사대백내장술후시력적예측개치.방법:수궤선취백내장환자공52례60안,기중노년성백내장27례30안,합병청광안적백내장25례30안(청광안균위만성폐각형완해기혹만성진행기),술전대기행mVEP검사,령취정상대조조30안.소유환자균행초성유화연합절첩인공정상체식입술.환자우술후1wk;1,3mo복사최가교정시력(best corrected visual acuity,BCVA).결과:정상대조조mVEP검측평균주파진폭화잠복기분별시183±11nV、95±8ms,노년성백내장조평균주파진폭화잠복기분별시177±10nV、96±8ms,2조재통계학상무현저성차이(P>0.05);합병청광안적백내장조평균주파진폭화잠복기분별시138±7nV、99±6ms,여정상대조조급노년성백내장조균존재현저성차이(P<0.05);백내장초성유화연합인공정상체식입술후BCVA≥0.8자,무명현안저시공능개변,기mVEP중심위점주파진폭276±11nV화잠복기93±8ms여정상대조조무현저성차이(P>0.05);이술후BCVA<0.3자,안저시공능검사유명현개변(술후검사증실),기mVEP중심위점주파진폭221±6nV,잠복기105±7ms,여정상대조조차이현저(P<0.05).결론:백내장술전mVEP진폭화잠복기적개변가용래객관판단안저시공능손해급예측술후시력.술전mVEP정상자고도제시술후시력예후량호,이mVEP검사결과변화현저,제시반유안저시공능손해,술후BCVA차.인차술전mVEP검사가작위예측백내장술후시력적일충유효、객관적검사방법.
AIM: To determine multifocal visual evoked potential (mVEP) in the prediction of postoperative visual acuity in cataract. METHODS: We examined 30 normal eyes as control and 60 eyes of 52 cataract patients, senile cataract in 27 cases 30 eyes, cataract with glaucoma in 25 cases 30 eyes by mVEP examination. All patients underwent phacoemulsifi-cation (Phaco) and intraocular lens (IOL) implantation. After surgery,best corrected visual acuity (BCVA) was examined at 1 week, 1 month, and 3 months respectively.RESULTS: The mean amplitude and latency in mVEP responses between normal control group were 183±11nV, 95±8ms, and in senile cataract group were 177±10nV, 96± 8ms respectively, there were no significant difference between two groups (P>0.05). The mean amplitude and latency of cataract with glaucoma 138±7nV, 99±6ms were significantly different comparing to both control and senile cataract group (P<0.05). After surgery, the am-plitude and latency were 276±11nV and 93±8ms respec-tively, which did not change significantly comparing to the normal eyes (P<0.05), their visual function got no obvious damage and visual recovery were better (BCVA≥0.8). While those with central amplitude 221±6nV and latency 105±7ms that were significantly deviated from control group (P<0.05), and their visual function were seriously damaged and visual recovery were much poorer (BCVA<0.3).CONCLUSION: mVEP waveform might enable us to evaluate objective visual function detection before cataract surgery. A subject with visual function damage, their mVEP responses to stimulation were severely changed when it compared to controls.
