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To the Editor.
—I have been practicing, almost routinely, for quite some time now, the technique of "choroidoscopy," that is, I transilluminate the globe transcutaneously or transsclerally with a bright "cold" light and observe the fundus oculi by means of indirect or direct ophthalmoscopy with the ophthalmoscope's focal beam of illumination turned off. This allows for examination of the choroid coat, including the choroidal venous plexus, the vortex veins, parts of the long and short ciliary arteries, and the long ciliary nerves, as well as the optic disc and macula. The macula does not appear the same as in standard ophthalmoscopy—rather, it appears in normal persons as a fairly well delineated homogeneous island of dense pigment as large or larger than the diameter of the optic disc, hiding, so to speak, the large choroidal veins behind it. A foveolar reflex of Soemmering is never seen.In a number of my
Cohen SW. Choroidoscopy. Arch Ophthalmol. 1976;94(9):1631. doi:10.1001/archopht.1976.03910040461028