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Optic disc drusen: longitudinal aspects, with emphasis on visual field constriction and enlarged blind spot: a retrospective hospital-based clinical series

Abstract

Purpose

To examine long-term data on optic disc drusen (ODD) from an outpatient hospital series that indicated more cases with advanced visual field constriction than is apparent from other clinical reports. The underlying pathophysiology is discussed, also with regard to enlarged blind spot, which, in view of the small disc at risk, may seem a paradox.

Methods

This is an observational retrospective study on an eye clinic series (n = 49), focusing on visual acuity, kinetic/static perimetry, and longitudinal trends, to include the question of eventual visual incapacity.

Results

Forty-nine patients (32 female and 17 male; bilateral ODD in 45) aged 5-76 years (median age 29 years for both sexes) were included in the study. Observation time was 1-54 years, with serial data recorded over at least 3 years in 25 patients. Visual field defects were found in 32 patients, with ODD considered responsible for the visual field defects demonstrated. Advanced unilateral concentric constriction (for the largest Goldmann object) was recorded in 10 patients, and bilaterally in 2. With regard to nonexplanatory side diagnoses, 2 patients had pituitary adenoma, 1 had a cavernous sinus meningioma, and 1 had neurosurgery for an arachnoid cyst.

Conclusions

We found more cases of marked visual field constriction than reported in other clinical series. A few such cases appeared acute and vascular, but the main trend was clinically quiet over time. All 49 patients could manage visually in daily life.

Eur J Ophthalmol 2017; 27(3): 372 - 378

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/ejo.5000864

Authors

Hans C. Fledelius

Article History

Disclosures

Financial support: No financial support was received for this submission.
Conflict of interest: The author has no conflict of interest with this submission.

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Authors

Affiliations

  • Copenhagen University Eye Clinics, Rigshospitalet and Glostrup, Copenhagen - Denmark

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