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Optic disc morphology in premature infants.

Sabine Hackl¹, Florian Zeman, Horst Helbig

¹Department of Ophthalmology, University Medical Centre Regensburg, Regensburg, Germany.

The British Journal of Ophthalmology

|February 20, 2013

Summary

Optic disc morphology in premature infants is influenced by low birth weight and gestational age. Premature birth is linked to a double ring feature on the optic disc.

Area of Science:

Ophthalmology
Neonatology
Developmental Biology

Background:

Optic disc morphology and optic nerve development are crucial for infant visual function.
Limited data exists on optic disc characteristics in premature infants.

Purpose of the Study:

To analyze optic disc morphology in premature infants.
To investigate the correlation between optic disc form, gestational age, and birth weight.

Main Methods:

Retrospective analysis of widefield RetCam images from 61 premature infants (111 optic discs).
Evaluation of optic disc shape (vertical-horizontal diameter ratio), cupping, cup-to-disc ratio, and double ring presence.

Main Results:

110/111 optic discs exhibited a vertical-oval shape.

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Significant negative correlation found between optic disc form and both birth weight (p=0.003) and gestational age (p=0.03).

A double ring was present in 75% and visible disc cupping in 89% of optic discs.

Conclusions:

Premature birth is associated with the presence of a double ring on the optic disc.
Lower birth weight and gestational age significantly impact optic disc shape in premature infants.