AAO News
The latest clinical breakthroughs, practice management updates, and national advocacy alerts directly from the American Academy of Ophthalmology.
The Onion Sign in Neovascular Age-Related Macular Degeneration Represents Cholesterol Crystals
To investigate the frequency, natural evolution, and histologic correlates of layered, hyperreflective, subretinal pigment epithelium (sub-RPE) lines, known as the onion sign, in neovascular age-related macular degeneration (AMD).
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