Due to poor air quality related to fires in California, the Academy’s San Francisco offices will be closed Friday, Nov. 16. Member support staff will not be available by phone and responses to emails may be delayed.

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    Retina/Vitreous

    NPDR may also be associated with cottonwool spots, superficial white lesions with feathery edges due to infarction of the nerve fiber layer of the retina causing axoplasmic stasis.