CAJ | 학술논문

目的探讨B型超声检查对于白内障术前黄斑区微小病变的诊断价值,从形态结构方面协助对白内障术后视功能恢复的评价.方法选取45例白内障术后经眼底摄片、OCT确诊的不同类型黄斑病变的患眼,将它们术前的B超不同程度的形态改变特征与OCT观察的黄斑中心平均视网膜厚度、黄斑中心视网膜体积的改变相比较.结果 B超0级组黄斑中心厚度和黄斑中心体积分别(278.29±75.66)μm和(0.26±0.13)mm3,B超1级组黄斑中心厚度和黄斑中心体积分别为(395.00±70.71)μm和(0.49±0.30)mm3,B超2级组黄斑中心厚度和黄斑中心体积分别为(336.58±69.66)μm和(0.27±0.06)mm3,B超3级组黄斑中心厚度和黄斑中心体积分别为(543.90±90.85)μm和(0.43±0.09)mm3.B超分级与黄斑中心厚度呈线性相关(F=44.849 P<0.01).B超分级与黄斑中心体积呈线性相关(F=8.260 P<0.01).结论随着黄斑中心视网膜厚度和体积的增加,B超的阳性率也增加.B超对黄斑区局部视网膜增厚识别敏感度较高,但对视网膜后极部弥漫性视网膜增厚识别敏感度较低.提示在屈光间质混浊眼,特别是白内障术前B超检查对于黄斑区微小病变的早期诊断及术后视力预测有一定的参考价值.
목적 탐토B형초성검사대우백내장술전황반구미소병변적진단개치,종형태결구방면협조대백내장술후시공능회복적평개.방법 선취45례백내장술후경안저섭편、OCT학진적불동류형황반병변적환안,장타문술전적B초불동정도적형태개변특정여OCT관찰적황반중심평균시망막후도、황반중심시망막체적적개변상비교.결과 B초0급조황반중심후도화황반중심체적분별(278.29±75.66)μm화(0.26±0.13)mm3,B초1급조황반중심후도화황반중심체적분별위(395.00±70.71)μm화(0.49±0.30)mm3,B초2급조황반중심후도화황반중심체적분별위(336.58±69.66)μm화(0.27±0.06)mm3,B초3급조황반중심후도화황반중심체적분별위(543.90±90.85)μm화(0.43±0.09)mm3.B초분급여황반중심후도정선성상관(F=44.849 P<0.01).B초분급여황반중심체적정선성상관(F=8.260 P<0.01).결론 수착황반중심시망막후도화체적적증가,B초적양성솔야증가.B초대황반구국부시망막증후식별민감도교고,단대시망막후겁부미만성시망막증후식별민감도교저.제시재굴광간질혼탁안,특별시백내장술전B초검사대우황반구미소병변적조기진단급술후시력예측유일정적삼고개치.
Objective To investigate the value of B-scan in diagnosis ofmacular micropathology before cataract phacocmulsification and evaluate the visual function after cataract phacocmulsification in structure. Methods A total of 45 cases of macular micropathology diagnosed after cataract phacocmulsification were compared with finding of B-scan, fundus photographs and OCT. Results The central macular thickness and volume in classification 0 by B-scan was 278.29± 75.66um and 0.26± 0.13mm3, in classification 1 was 395.00± 70.71um and 0.49± 0.30mm3, in classification 2 was 336.58± 69.66um and 0.27± 0.06mm3, and in classification 3 was 543.90± 90.85um and 0.43± 0.09mm3. It was linear correlated between the classification and the central macular thickness (F =44.849,P <0.01), and the classification and the central macular volume (F=8.267, P <0.01). Conclusions There is positive correlation between thicknesses ofmacular to the classification by B-scan. The sensitivity of B-scan in the local thickening in macular is higher than the dispersion thickening. In patient with refractive media opacity, it is valuable to use B-scan to diagnose macular micropathology before cataract phacoemulsification and predict the visual function after cataract phacoemulsification.