PSEUDOFLUORESCENCE

Abstract

<h3>To the Editor.</h3> —In the June 1968 issue of theArchives(<b>79</b>:729 [June] 1968), a choroidal rupture through the macula was demonstrated in Fig 5 of Gitter et al's article, "Traumatic Hemorrhagic Detachment of Retinal Pigment Epithelium." In the legend for Fig 6, the authors make a claim that the fluorescein angiogram showed "leakage of dye through the choroidal rupture." I do not believe that these photographs substantiate this statement. A true dye leak, as seen by ophthalmoscopy, produces a progressively enlarging area of yellow-green fluorescence with indistinct margins. In contrast to true fluorescence a pseudofluorescence is often seen in white fundus lesions due to reflection of light during angiograms. With pseudofluorescence, the outline of the white fundus lesion is exactly reproduced without focal accumulation of fluorescein. The occurrence of pseudofluorescence has recently been emphasized by Gass in his article, "Acute Posterior Multifocal Placoid Pigment Epitheliopathy" (<b>80</b>:177 [Aug]