The relationship of birth weight, gestational age, and postmenstrual age with ocular biometry parameters in premature infants

Arquivos Brasileiros de Oftalmologia

Ozdemir Ozdemir¹  Zuhal Ozen Tunay¹  Damla Erginturk Acar¹  Muhammet Kazım Erol¹  Ender Sener¹  Ugur Acar¹ 

关键词: Anterior chamber;    Axial length;    eye;    Biometry;    Gestational age;    Premature;    Birth weight;    Camada anterior;    Comprimento axial do olho;    Biometria;    Idade gestacional;    Infant;    Premature;    Peso ao nascer;   

DOI  :  10.5935/0004-2749.20150038

来源: SciELO

【 摘 要 】

ABSTRACT Purpose: To analyze ocular biometry parameters and evaluate their relationship with gestational age, birth weight, and postmenstrual age in prematurely born infants. Methods: The right eyes of 361 premature infants born before the 36th gestational week were evaluated. Birth weight, gestational week, and gender were recorded. An A-scan Biometer was used for obtaining axial measurements, including anterior chamber depth, lens thickness, vitreous length, and total axial length. Results: Gestational age and birth weight values ranged from 23 to 36 weeks and from 560 to 2,670 g, respectively. The mean gestational age and birth weight were 30.8 ± 2.8 weeks and 1,497.9 ± 483.6 g, respectively. During the first examination (4-5 weeks of postnatal age), birth weight and gestational age of the infants correlated significantly and positively with lens thickness, vitreous length, and axial length (r>0.5, p<0.001), but not with anterior chamber depth (r<0.5). Increased vitreous and axial lengths correlated significantly with increasing postmenstrual age of the infants (r=0.669, p<0.001; r=0.845, p<0.001, respectively). Conclusions: Lens thickness, vitreous length, and axial length, but not anterior chamber depth, were significantly correlated with birth weight and gestational age. All four parameters increased with increasing postmenstrual age, with higher correlations for vitreous and axial lengths than for anterior chamber depth and lens thickness. It was concluded that axial elongation resulted primarily from increasing posterior chamber length.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License