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—I appreciate Dr Newman's comments regarding the development of visible drusen in optic discs that are initially observed to be elevated but in which drusen cannot be observed. About seven years ago, I had the opportunity to review the original slides of the photographs to which Dr Newman refers, and it was my impression that I could identify the drusen in the original photographs, particularly the one at 12 o'clock in the right disc and the one at 6 o'clock in the left disc, although of course they were not as prominent as they were ten years later. In my case, despite my belief that drusen were present, I could not see them by direct ophthalmoscopy or slit-lamp biomicroscopy, and I could not identify them on either color photographs or fluorescein angiography. Nevertheless, I agree that Huber's photographs are impressive, and I am delighted to give him and
Miller NR. Visible Drusen in Optic Discs-Reply. Arch Ophthalmol. 1986;104(11):1587–1588. doi:10.1001/archopht.1986.01050230025017
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