Gohdo T, Tsumura T, Iijima H, Kashiwagi K, Tsukahara S
Department of Ophthalmology, Yamanashi Medical University, Tamaho, Yamanashi, Japan.
Am J Ophthalmol. 2000 Mar;129(3):342-6. doi: 10.1016/s0002-9394(99)00353-0.
To determine the ciliary body thickness and other biometric findings in eyes with narrow angles.
Eighteen otherwise normal eyes with narrow angles in 18 Japanese patients and 18 normal control eyes with open angles in 18 age-matched and sex-matched Japanese patients were studied. A-scan ultrasonography was performed to measure anterior chamber depth, lens thickness, axial length, and relative lens position. Ultrasound biomicroscopy was also performed to obtain measurements of the anterior ocular structures, including anterior chamber depth and ciliary body thickness at sites 1 mm and 2 mm posterior to the scleral spur (positions 1 and 2, respectively).
Compared with normal control eyes, the narrow-angle eyes showed a shallower anterior chamber (narrow angle, 1.87 +/- 0.27 mm; control, 2.69 +/- 0.26 mm; P <.0001), a thicker lens (4.97 +/- 0.49 mm, 4.26 +/- 0.53 mm; P <.0001), a more anteriorly located lens (2. 21 +/- 0.13, 2.35 +/- 0.14; P <.0001), a shorter axial length (22.70 +/- 0.97 mm, 23.41 +/- 0.86 mm; P =.012), and a thinner ciliary body (position 1: 454 +/- 107 microm, 602 +/- 86 microm; P <.0001; position 2: 203 +/- 50 microm, 321 +/- 68 microm; P <.0001). Lens thickness was significantly correlated with ciliary body thickness at positions 1 (R(2) = 0.34; P =.0001) and 2 (R(2) = 0.43; P <.0001). Anterior chamber depth was significantly correlated with ciliary body thickness at positions 1 (R(2) = 0.48; P <.0001) and 2 (R(2) = 0.56; P <.0001).
Thinning of the ciliary body may be one of the important factors associated with the anterior location of the lens, the increased lens thickness, and the decreased anterior chamber depth in eyes with a narrow angle.
确定窄角眼中睫状体厚度及其他生物测量结果。
对18例日本患者的18只其他方面正常的窄角眼和18例年龄及性别匹配的日本患者的18只正常对照开角眼进行研究。采用A超超声检查测量前房深度、晶状体厚度、眼轴长度和晶状体相对位置。还进行了超声生物显微镜检查，以测量眼前节结构，包括巩膜突后1mm和2mm处（分别为位置1和位置2）的前房深度和睫状体厚度。
与正常对照眼相比，窄角眼的前房较浅（窄角眼，1.87±0.27mm；对照眼，2.69±0.26mm；P<0.0001），晶状体较厚（4.97±0.49mm，4.26±0.53mm；P<0.0001），晶状体位置更靠前（2.21±0.13，2.35±0.14；P<0.0001），眼轴长度较短（22.70±0.97mm，23.41±0.86mm；P=0.012），睫状体较薄（位置1：454±107μm，602±86μm；P<0.0001；位置2：203±50μm，321±68μm；P<0.0001）。晶状体厚度与位置1（R²=0.34；P=0.0001）和位置2（R²=0.43；P<0.0001）的睫状体厚度显著相关。前房深度与位置1（R²=0.48；P<0.0001）和位置2（R²=0.56；P<0.0001）的睫状体厚度显著相关。
睫状体变薄可能是窄角眼中晶状体位置靠前、晶状体厚度增加和前房深度减小的重要相关因素之一。
