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Progression from anomalous optic discs to visible optic disc drusen
Terrence S Spencer1, Bradley J Katz, Steve W Weber
1Department of Ophthalmology, John A. Moran Eye Center, University of Utah Health Sciences Center, Salt Lake City, Utah 84132, USA.
Summary
This case study tracks a patient from age 5 to 21, documenting the development of optic nerve drusen. It highlights the progression from elevated optic discs to visible optic nerve drusen and associated visual field defects over 16 years.
Area of Science:
- Ophthalmology
- Neurology
Background:
- Optic nerve drusen are abnormal calcifications within the optic nerve head.
- Their etiology and natural history are not fully understood.
- Early detection and monitoring are crucial for managing potential vision loss.
Observation:
- A patient presented at age 5 with elevated optic discs but no drusen.
- Computed tomography (CT) scans revealed optic nerve calcification by age 9.
- Ophthalmoscopy and fundus photography showed progressively evident optic disc drusen from age 12 to 21.
Findings:
- The patient exhibited a 16-year progression from anomalous optic discs to ophthalmoscopically visible optic nerve drusen.
- Visual field defects, including blind spot enlargement and arcuate defects, were noted and showed slight progression.
- Disc pallor was observed in the final examination at age 21.
Implications:
- This case illustrates the longitudinal development and potential progression of optic nerve drusen.
- It underscores the importance of advanced imaging like CT in diagnosing optic nerve abnormalities.
- Understanding this progression aids in predicting visual field loss and informing patient management strategies.