早产儿无早产儿视网膜病变的屈光状态和眼轴长度与出生体重和胎龄的关系。

Refractive status and ocular axial length in preterm infants without retinopathy of prematurity with regard to birth weight and gestational age.

机构信息

Department of Ophthalmology, Pomeranian Medical University, Al. Powstańców Wlkp. 72, 70-111 Szczecin, Poland.

出版信息

J Perinat Med. 2010 May;38(3):327-31. doi: 10.1515/jpm.2010.018.

DOI:10.1515/jpm.2010.018

PMID:20121489

Abstract

PURPOSE

To obtain ultrasonographic measurements of ocular axial length (AL) in preterm infants without retinopathy of prematurity (ROP) but with different refractive power in regard to birth weight (BW) and gestational age (GA).

METHODS

Refraction was measured after cycloplegia (at 6 months of life) in 350 eyes of 180 preterm (non-astigmatic) infants without ROP. Subjects were grouped according to the refractive error: A [above -6.0 dioptres (D)]; B (-3.1 to -6.0 D); C (0 to -3.0 D); D (0.1 to +3.0 D); E (+3.1 to +6.0 D); F (above +6.0 D). The AL measurement was performed by ocular A-scan ultrasound biometry (10 MHz probe).

RESULTS

The longest AL was found in group B (20.62 mm) compared to group D and E (19.35, 19.28 mm; P< or =0.01) and group F and A (19.63, 19.39 mm; P< or =0.05). Only regressive correction for BW was statistically significant. Correlations between AL and BW (Rs=0.23) or GA (Rs=0.17) were found only in group E.

CONCLUSIONS

AL of myopic eyes was significantly longer. In general, hyperopia was positively correlated with BW, whereas correlation between myopia and BW or GA was not found.

摘要

目的

获得无早产儿视网膜病变（ROP）但出生体重（BW）和胎龄（GA）不同屈光力的早产儿眼部轴向长度（AL）的超声测量值。

方法

对 180 例无 ROP（非散光）早产儿的 350 只眼在 6 个月大时进行睫状肌麻痹后（麻痹后）进行屈光测量。根据屈光误差将受试者分为 A 组[大于-6.0 屈光度（D）]；B 组（-3.1 至-6.0 D）；C 组（0 至-3.0 D）；D 组（0.1 至+3.0 D）；E 组（+3.1 至+6.0 D）；F 组（大于+6.0 D）。AL 测量采用眼部 A 型超声生物测量仪（10MHz 探头）进行。

结果

与 D 组和 E 组（19.35、19.28mm；P<或=0.01）和 F 组和 A 组（19.63、19.39mm；P<或=0.05）相比，B 组的最长 AL 为 20.62mm。仅对 BW 进行回归校正具有统计学意义。仅在 E 组中发现 AL 与 BW（Rs=0.23）或 GA（Rs=0.17）之间存在相关性。