Lal Garima, Trivedi Rupal H, Wilson M Edward, Scarlett Leslie C, Peterseim M Millicent
Miles Center for Pediatric Ophthalmology, Storm Eye Institute, Department of Ophthalmology, Medical University of South Carolina, Charleston, South Carolina, USA.
J AAPOS. 2005 Aug;9(4):358-62. doi: 10.1016/j.jaapos.2005.02.009.
We sought to report interocular axial length difference (IALD) between the operated eye and fellow eye at the time of pediatric cataract surgery.
A retrospective analysis of 171 cataractous (operated) eyes (mean patient age at surgery, 56.9 months; range, 0.2-230.0) was undertaken. Descriptive statistics, analysis of covariance, and regression analysis were used in statistical analysis.
The mean IALD was 0.05 +/- 1.15 mm. If absolute values were used, mean IALD was 0.76 +/- 0.86. Nearly half of the subjects (48.0%) showed an IALD of >/=0.5 mm. Forty-one patients (24.0%) had operated (cataractous) eyes that were >/=0.5 mm shorter than the fellow eye, and 41 patients (24.0%) had operated eyes that were >/=0.5 mm longer than the fellow eye. The mean IALD in unilateral and bilateral cases was 0.10 +/- 1.33 and -0.03 +/- 0.76, respectively (P = 0.4). If absolute values were used, it was 0.98 +/- 0.90 and 0.40 +/- 0.65 in unilateral and bilateral cases, respectively (P < 0.001). IALD was more predictable in unilateral than in bilateral cases (P < 0.001). In unilateral cases, age at surgery (P = 0.04) and AL of the operated eye (P < 0.001) correlated with IALD. IALD did not correlate with gender, ethnicity, or type of cataract in either unilateral or bilateral cases.
An IALD of >/=0.5 mm occurred in 48.0% of patients with pediatric cataracts and occurred more often with unilateral cataractous patients than with bilateral cases. In patients with unilateral cataract, age at surgery and AL of the operated eye could help predict the IALD.
我们试图报告小儿白内障手术时患眼与对侧眼之间的眼轴长度差异（IALD）。
对171只白内障（手术）眼进行回顾性分析（手术时患者平均年龄56.9个月；范围0.2 - 230.0个月）。描述性统计、协方差分析和回归分析用于统计分析。
平均IALD为0.05±1.15mm。若使用绝对值，平均IALD为0.76±0.86。近一半受试者（48.0%）的IALD≥0.5mm。41例患者（24.0%）的手术（白内障）眼比对侧眼短≥0.5mm，41例患者（24.0%）的手术眼比对侧眼长≥0.5mm。单侧和双侧病例的平均IALD分别为0.10±1.33和 - 0.03±0.76（P = 0.4）。若使用绝对值，单侧和双侧病例分别为0.98±0.90和0.40±0.65（P < 0.001）。IALD在单侧病例中比双侧病例更具可预测性（P < 0.001）。在单侧病例中，手术年龄（P = 0.04）和患眼眼轴长度（P < 0.001）与IALD相关。在单侧或双侧病例中，IALD与性别、种族或白内障类型均无关。
48.0%的小儿白内障患者出现IALD≥0.5mm，单侧白内障患者比双侧患者更常出现。对于单侧白内障患者，手术年龄和患眼眼轴长度有助于预测IALD。
