Retinal hemorrhages as one of complications of optic disc drusen during pregnancy.
2014
Introduction. Drusen of the optic nerve head are relatively benign and
asymptomatic. They represent retinal hyaline corpuscles resulting from
impaired axoplasmic transport of the retinal ganglion cells of optic nerve in
front of the lamina cribrosa. They are usually detected accidentally, during
a routine ophthalmologic examination. Most patients with optic disc drusen
are not aware of the deterioration of their eyesight because of the slow
progression of visual field defects. Damage in visual acuity due to optic
disc drusen is rare. Case Report. A 27-year-old female patient in the sixth
month of pregnancy visited an ophthalmologist because of a visual impairment
described as the appearance of mist and shadows over her right eye. When
first examined, her visual acuity in both eyes was 20/20. The retinal
hemorrhages framing the bottom half of the optic nerve were seen. Complete
laboratory and clinical testing as well as specific ophthalmic examinations
(photofundus, computerized visual field, optical coherence tomography, and
ultrasound) were performed to exclude systemic causes and they presented no
risk for the pregnancy. Echosonographic examination confirmed the presence of
bilateral optic nerve head drusen. Conclusion. Hemodynamic changes during
pregnancy are possible factors for the development of optical disc and
retinal hemorrhages. Since treatment of optic disc drusen is limited,
recognition of optic nerve drusen as a cause of hemorrhage during pregnancy
prevents unnecessary diagnostic and therapeutic interventions.
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