中国实用眼科杂志
中國實用眼科雜誌
중국실용안과잡지
CHINESE JOURNAL OF PRACTICAL OPHTHALMOLOGY
2012年
4期
406-410
,共5页
郝永娜%魏瑞华%王海燕%赵少贞
郝永娜%魏瑞華%王海燕%趙少貞
학영나%위서화%왕해연%조소정
角膜地形图%圆锥角膜%诊断
角膜地形圖%圓錐角膜%診斷
각막지형도%원추각막%진단
Corneal Topography%Keratoconus%Diagnose
目的 对圆锥角膜(KC)患者双眼的角膜地形图进行分析,对各量化参数进行特点评估.方法 临床病例研究.对2008年1月至2010年3月在天津医科大学眼科中心就诊符合诊断标准的KC患者63例(108只眼),使用Obscan Ⅱ角膜地形图仪检测双眼角膜,统计分析获得的数量指标,并与作为正常对照眼的64例中高度近视患者(64只眼)进行比较分析.结果 临床期KC组的最大角膜曲率值与最高角膜后表面高度、角膜最薄厚度、3 mm区域不规则值、5 mm区域不规则值差异有统计学意义(P＜0.01).与正常对照组相比,临床期KC眼和亚临床期KC眼均具有较高后表面最大高度值、3 mm不规则值和5 mm不规则值及较低的角膜厚度.临床期KC组、亚临床期KC组及正常组角膜最薄点到角膜中心的平均距离分别为(0.76±0.42) mm、(0.66±0.38) mm和(0.61±0.29) mm.临床期KC组和亚临床期KC组角膜最薄点位置多数在颞下方,而正常组角膜最薄点位置多数位于1 mm圆环区域内.结论 Obscan Ⅱ角膜地形图仪可全面了解角膜前后表面形态,通过分析其量化参数指标,能够更早诊断圆锥角膜.
目的 對圓錐角膜(KC)患者雙眼的角膜地形圖進行分析,對各量化參數進行特點評估.方法 臨床病例研究.對2008年1月至2010年3月在天津醫科大學眼科中心就診符閤診斷標準的KC患者63例(108隻眼),使用Obscan Ⅱ角膜地形圖儀檢測雙眼角膜,統計分析穫得的數量指標,併與作為正常對照眼的64例中高度近視患者(64隻眼)進行比較分析.結果 臨床期KC組的最大角膜麯率值與最高角膜後錶麵高度、角膜最薄厚度、3 mm區域不規則值、5 mm區域不規則值差異有統計學意義(P＜0.01).與正常對照組相比,臨床期KC眼和亞臨床期KC眼均具有較高後錶麵最大高度值、3 mm不規則值和5 mm不規則值及較低的角膜厚度.臨床期KC組、亞臨床期KC組及正常組角膜最薄點到角膜中心的平均距離分彆為(0.76±0.42) mm、(0.66±0.38) mm和(0.61±0.29) mm.臨床期KC組和亞臨床期KC組角膜最薄點位置多數在顳下方,而正常組角膜最薄點位置多數位于1 mm圓環區域內.結論 Obscan Ⅱ角膜地形圖儀可全麵瞭解角膜前後錶麵形態,通過分析其量化參數指標,能夠更早診斷圓錐角膜.
목적 대원추각막(KC)환자쌍안적각막지형도진행분석,대각양화삼수진행특점평고.방법 림상병례연구.대2008년1월지2010년3월재천진의과대학안과중심취진부합진단표준적KC환자63례(108지안),사용Obscan Ⅱ각막지형도의검측쌍안각막,통계분석획득적수량지표,병여작위정상대조안적64례중고도근시환자(64지안)진행비교분석.결과 림상기KC조적최대각막곡솔치여최고각막후표면고도、각막최박후도、3 mm구역불규칙치、5 mm구역불규칙치차이유통계학의의(P＜0.01).여정상대조조상비,림상기KC안화아림상기KC안균구유교고후표면최대고도치、3 mm불규칙치화5 mm불규칙치급교저적각막후도.림상기KC조、아림상기KC조급정상조각막최박점도각막중심적평균거리분별위(0.76±0.42) mm、(0.66±0.38) mm화(0.61±0.29) mm.림상기KC조화아림상기KC조각막최박점위치다수재섭하방,이정상조각막최박점위치다수위우1 mm원배구역내.결론 Obscan Ⅱ각막지형도의가전면료해각막전후표면형태,통과분석기양화삼수지표,능구경조진단원추각막.
Objective To evaluate corneal topography of keratoconus,and evaluate characteristics of the quantitative parameters.Methods Sixty-three keratoconus patients (Rabinowitz diagnosis standards) were examined on both eyes with Obscan Ⅱ topography.The recorded quantitative parameters were analyzed statistically.Sixty-four patients (64 eyes) with moderate or high myopia were selected as normal control and comparison analysis were made between them.Results The maximum keratometry of clinical keratoconus had significantly correlation with maximum posterior elevation,thinnest pachymetry,3-mm irregularity,5-mm irregularity (P ＜0.0001).Clinical and subclinical keratoconus eyes had higher maximum posterior elevation,3-mm irregularity,5-mm irregularity and thinner corneas compared with normal eyes.The distance from the thinnest point to the corneal center of clinical keratoconus group,subclinical keratoconus group and normal group was (0.76±0.42)mm,(0.66±0.38)mm and (0.61±0.29)mm,respectively.Most of the corneal thinnest point of clinical/subclinical keratoconus eyes was in the inferior tempus,the normal group was in the lmm ring region.Conclusions Obscan Ⅱ topography can make fully evaluation on comeal anterior and posterior face.Keratoconus can be diagnosed earlier by analyzing the quantitative index statistically.
