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Buried disc drusen have hypo-reflective appearance on SD-OCT.

Authors
Type
Published Article
Journal
Optometry and vision science : official publication of the American Academy of Optometry
Publication Date
Volume
89
Issue
5
Identifiers
DOI: 10.1097/OPX.0b013e31824ee8e0
PMID: 22446716
Source
Medline
License
Unknown

Abstract

The hyporeflective appearance may not be anticipated by clinicians, as B-scans show calcified drusen as hyperreflective on echo. It is hypothesized that the hyporeflectant appearance of drusen is due to a constancy in refractive index through the druse, as OCT detects changes in optical reflectivity. Thus, drusen are likely dense and homogenous. SD-OCT may be more useful in those patients with buried disc drusen which are not calcified as B-scan often contributes little in such cases.

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