Bacillary layer detachment (BLD)
Refers to a split in the inner segments of the photoreceptor layer between the myoid zone (MZ) and the ellipsoid zone (EZ).
A novel OCT finding that has been described in the acute stage of inflammatory or infiltrative lesions of the choroid which decrease the outer retinal perfusion (?surrogate for underlying choriocapillaris ischemia):
Acute VKH syndrome (called “outer retinal cystic spaces”/ “septate neurosensory detachment” / “subretinal fluid with fibrin”)
Disappears with therapy, with rapid restoration of the outer retina and corresponding visual gain