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Optic disk contractility in morning glory disk anomaly.

Sadasivan K Samyukta1, Syed Mohideen Abdul Khader1, Neelam Pawar1

  • 1Aravind Eye Hospital, Tirunelveli, Tamil Nadu, India.

Journal of AAPOS : the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
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PubMed
Summary
This summary is machine-generated.

Morning glory disk anomaly, a rare optic nerve condition, was observed in a young girl. This case uniquely shows the optic disk contracting and expanding with light, alongside increasing eye length.

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Pediatric Ophthalmology

Background:

  • Morning glory disk anomaly is a congenital optic disk dysplasia.
  • It presents with a characteristic posterior fundus excavation, glial tuft, and radial retinal vessels.

Observation:

  • A 4-year-old girl exhibited esotropia, enophthalmos, and no light perception in her left eye.
  • Fundus examination revealed the morning glory disk anomaly.
  • Ultrasound B-scan demonstrated increasing axial length in the affected eye during consensual light exposure.

Findings:

  • The optic disk showed dynamic contractility, contracting and expanding with light stimulation to the fellow eye.
  • Globe elongation was noted posteriorly in the left eye.
  • This optic disk contractility with increasing axial length in response to consensual light exposure is a novel finding in pediatric cases.

Implications:

  • This case highlights a previously unreported dynamic characteristic of morning glory disk anomaly.
  • It suggests potential light-induced changes affecting ocular dimensions in this condition.
  • Further research may elucidate the pathophysiology and clinical significance of this optic disk behavior.