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[Visual field defects in the optic disc drusen].

Iwona Obuchowska¹, Zofia Mariak

¹Kliniki Okulistyki Uniwersytetu Medycznego w Białymstoku.

|February 7, 2009

Summary

Visual field defects are common in optic disc drusen, particularly in visible drusen cases. These defects correlate with visual acuity loss and abnormal visual evoked potentials (VEP).

Area of Science:

Ophthalmology
Neuro-ophthalmology

Context:

Optic disc drusen are abnormal growths within the optic nerve head.
These drusen can lead to impaired optic nerve function and visual disturbances.

Purpose:

To evaluate and characterize visual field defects in patients with visible and buried optic disc drusen.
To compare the prevalence and patterns of visual field defects between visible and buried optic disc drusen.

Summary:

Visual field defects were observed in 63.2% of eyes with optic disc drusen.
Enlargement of the blind spot and nerve fiber bundle defects were the most common patterns.
Eyes with visible drusen showed a higher incidence of visual field defects (76.3%) compared to buried drusen (46.5%).
Abnormal visual evoked potentials (VEP) were also more frequent in visible drusen (44.7%) versus buried drusen (20%).

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Impact:

Visual field loss is a significant symptom associated with optic disc drusen.
The findings highlight a stronger association between visible optic disc drusen and visual field impairment.
Perimetric changes are strongly linked to reduced visual acuity and abnormal VEP findings, underscoring the functional impact of optic disc drusen.