The number of microscopical examinations of eyes with syphilitic disease is not large. Besides some short reports by J. Hutchinson, Bader, Klebs, Furstner, and Pagenstecher, I have found the following accounts in the literature: Edmunds and Brailey make the following summary statement as to syphilis of the interior of the eye: The choroidal vessels seem not to be altered, while those of the retina, both in acquired and congenital syphilis, are thickened, probably from inflammatory processes.
A look at the past . . .. Arch Ophthalmol. 2000;118(3):424. doi:10.1001/archopht.118.3.424