Visual Field Defects and Retinal Nerve Fiber Layer Defects in Eyes With Buried Optic Nerve Drusen - 18/08/11
, Howard D. Pomeranz, MD, PhD bRésumé |
Purpose |
To evaluate the visual field with the use of automated perimetry and to evaluate the retinal nerve fiber layer (RNFL) with optical coherence tomography (OCT) in patients with buried optic nerve drusen (OND).
Design |
Observational case control study.
Methods |
Eyes with buried OND were defined as eyes with ultrasound-proved drusen that were not visible with indirect slit-lamp biomicroscopy. All eyes underwent automated perimetry. Some eyes underwent OCT to evaluate the RNFL.
Results |
Fifty-eight eyes of 41 patients with buried OND were evaluated. Three eyes (5%) had inferior arcuate scotomas. The other 55 eyes did not have visual field defects. Twenty-one of the eyes without visual field defects underwent RNFL analysis with OCT. All 21 eyes had normal average RNFL thickness. Some eyes had focal RNFL defects, but it is not clear whether these defects were clinically significant.
Conclusion |
Visual field defects are uncommon in eyes with buried OND. Eyes with buried OND may have focal RNFL defects but have normal average RNFL thickness. In patients with buried OND and a visual field defect, consideration should be given to searching for other causes of the defect, especially if the defect is substantial.
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| Supported by National Institutes of Health grant K23-RR16427 (B.J.K.) and unrestricted grants to the Department of Ophthalmology and Visual Sciences, University of Utah, and the Department of Ophthalmology, University of Minnesota, from Research to Prevent Blindness, Inc, New York City, New York. None of the funding agencies had any role in the design or conduct of the study, collection, management, analysis or interpretation of the data, preparation, review or approval of the manuscript. |
Vol 141 - N° 2
P. 248 - février 2006 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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