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optic_nerve_drusen [2025/01/04 22:21] – Scott Larsonoptic_nerve_drusen [2025/04/18 20:40] (current) – external edit 127.0.0.1
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 ===Fundus Auto Fluorescence=== ===Fundus Auto Fluorescence===
  
-{{::faf_on_drusen.png?600|}}+{{::faf_on_drusen.png?600|}}\\
 -From Johanna Dijkstal Beebe, MD "The Optic Nerve is Swollen, but Retinal Nerve Fiber Layer is Thin" AAO 2024  -From Johanna Dijkstal Beebe, MD "The Optic Nerve is Swollen, but Retinal Nerve Fiber Layer is Thin" AAO 2024 
  
 ===CT Scan=== ===CT Scan===
-{{::ct_scan_on_drusen.png?600|}}+{{::ct_scan_on_drusen.png?600|}}\\
 -From Johanna Dijkstal Beebe, MD "The Optic Nerve is Swollen, but Retinal Nerve Fiber Layer is Thin" AAO 2024  -From Johanna Dijkstal Beebe, MD "The Optic Nerve is Swollen, but Retinal Nerve Fiber Layer is Thin" AAO 2024 
  
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 - usually normal segmentation - usually normal segmentation
 - may have temporal thinning  - may have temporal thinning 
-- Distinguish from [[Peripapillary Hyperreflective Ovid Mass-like Structures|https://eyewiki.org/Peripapillary_Hyperreflective_Ovoid_Mass-Like_Structures_(PHOMS)]] (PHOMS) +- Distinguish from [[https://eyewiki.org/Peripapillary_Hyperreflective_Ovoid_Mass-Like_Structures_(PHOMS)|Peripapillary Hyperreflective Ovid Mass-like Structures]] (PHOMS) 
  
 {{::phoms_vs_on_drusen.png?600|}} {{::phoms_vs_on_drusen.png?600|}}
  
 +----
  
 +{{::drusen.jpg?600|}}
 +
 +**[[https://www.clinicalkey.com/#!/content/1-s2.0-S0161642024001994|Interest of Retromode Imaging in the Visualization of Optic Nerve Head Drusen]]**\\
 +David H. Martiano MD, FEBO and Sebastien Massonnet\\
 +Ophthalmology, Copyright © 2024 American Academy of Ophthalmology
 +<file>
 +A 28-year-old woman was referred for multimodal imaging (Nidek, Mirante) of asymptomatic optic nerve head drusen. 
 +A - Retromode imaging was performed and demonstrated the limits and number of optic nerve head drusen, which seem to be organized in a grape-like network of different sizes and densities. 
 +B - Color fundus photography showed fuzzy papillary margins (pseudoedema). 
 +C - Autofluorescence photography showed diffuse hyper-autofluorescence of the drusen. 
 +D - Performing OCT B-scan was useful to present the different densities of the drusen, which appear as circular structures. 
 +(Magnified version of Figure A - D is available online at www.aaojournal.org ). </file>