The rare, chance occurrence of glaucoma in a patient with congenital Horner's syndrome has been noted. These two conditions apparently interact. The implications regarding aspects of glaucoma therapy are discussed.
Weinstein GW, Langham ME. Horner's Syndrome and GlaucomaReport of a Case. Arch Ophthalmol. 1969;82(4):483-486. doi:10.1001/archopht.1969.00990020485011