ArticleArquivos brasileiros de oftalmologia
Effect of pupil dilation on intraocular pressure in preterm and term infants.
Article in Arquivos brasileiros de oftalmologia. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed, 1 citations in OpenAlex.
- Intraocular pressure distribution in old and young cynomolgus monkeys following general anesthesia and mydriasis.Molecular vision · 2025Article
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7 authors at 2 institutions in 1 country.
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Abstract
purposeTo evaluate the effect of pupil dilation on intraocular pressure in preterm and term newborns.
methodsThis prospective study involved 55 eyes of 28 preterm infants and 38 eyes of 20 term infants. The infants were divided into two groups according to their gestational ages at birth as follows: preterm group, <37 weeks and term group, ≥37 weeks. Pupil dilation was attained with tropicamide 0.5% and phenylephrine 2.5%. Intraocular pressure measurements were performed with Icare PRO (Icare Finland Oy, Helsinki, Finland) before and after pupil dilation. A paired t test was used to compare the measurements before and after pupil dilation.
resultsThe mean intraocular pressure change was -1.04 ± 3.03 mmHg (6.20/-11.40 mmHg) in the preterm group and -0.39 ± 2.81 mmHg (4.60/-9.70 mmHg) in the term group. A statistically significant difference in intraocular pressure was observed only in the preterm group after pupil dilation (p=0.01).
conclusionAn unexpected alteration in intraocular pressure in newborns may occur after pupil dilation, especially in preterm infants.
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