• The most unique property of subchoroidal fluid was found to be the high bilirubin level. One distinct yellow band in the same position as albumin was observed when it was subjected to electrophoresis on agarose film. The yellow compound was very soluble in chloroform. Its identity to bilirubin was confirmed by its absorption maximum at 445 nm, and a positive reaction with Ehrlich's diazo reagent. Subretinal fluid and liquid vitreous often had a yellowish appearance after ocular hemorrhage. However, their bilirubin level was not elevated above that of serum. Our data indicated that the degradation of RBCs may be an important causative factor of persistent detachment.
Lam WKW, Lee P, Ray GS, Feman S, van Heuven WAJ. Albumin-Bound Bilirubin in Subchoroidal Fluid. Arch Ophthalmol. 1979;97(1):149–151. doi:10.1001/archopht.1979.01020010083019
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