Shih Min-Hsiu, Huang Fu-Chin
Department of Ophthalmology, National Cheng Kung University Hospital, Tainan, Taiwan.
Cornea. 2007 Oct;26(9):1090-4. doi: 10.1097/ICO.0b013e3181451212.
To study the relationship between astigmatism and epiblepharon in Taiwanese children that need surgical correction.
In a retrospective case-control study, a total of 254 eyes in 134 children surgically treated for lower-lid epiblepharon were studied. A further 205 eyes in 104 children 4-7 years of age were included as controls. Data on age, sex, severity of preoperative corneal erosion, best-corrected visual acuity, and preoperative and postoperative refractive errors were recorded. The data of astigmatism were decomposed into P90 (at 90 degrees) and its oblique meridian Pobl. Nonparametric tests were used to compare the severity of astigmatism.
No significant difference between age group (<4, 4-7, >7 years) in P90 was shown in children with epiblepharon. Pobl was trivial in each group of epiblepharon. Children with epiblepharon 4-7 years of age had significantly (P < 0.001) greater P90 than controls (1.12 vs. 0.47 D). P90 and Pobl were not significantly changed postoperatively. In the same individual, the eye with the more severely affected cornea had greater astigmatism (P = 0.002), even after the corneal erosion healed.
Children with epiblepharon who needed surgery had greater with-the-rule astigmatism than controls. More severe corneal erosion was associated with higher astigmatism. Surgical correction of skinfold and promotion of reepithelialization did not attenuate astigmatism significantly.
研究台湾地区需要手术矫正的儿童散光与睑裂斑的关系。
在一项回顾性病例对照研究中，对134例接受下睑睑裂斑手术治疗的儿童的254只眼进行了研究。另外纳入104例4至7岁儿童的205只眼作为对照。记录年龄、性别、术前角膜糜烂严重程度、最佳矫正视力以及术前和术后屈光不正的数据。散光数据分解为90°（P90）及其斜子午线（Pobl）。采用非参数检验比较散光的严重程度。
睑裂斑患儿年龄组（<4岁、4至7岁、>7岁）之间的P90无显著差异。每组睑裂斑患儿的Pobl都很小。4至7岁睑裂斑患儿的P90显著高于对照组（P < 0.001）（1.12 D对0.47 D）。术后P90和Pobl无显著变化。在同一个体中，即使角膜糜烂愈合后，角膜受累更严重的眼散光也更大（P = 0.002）。
需要手术的睑裂斑患儿顺规散光比对照组更大。更严重的角膜糜烂与更高的散光相关。手术矫正皮肤褶皱和促进上皮再形成并不能显著减轻散光。
