Samples of aqueous fluid were obtained from 35 ''controls'' who were p
eople undergoing routine cataract surgery. Similar samples were taken
from seven patients with clinically definite multiple sclerosis (MS) a
nd a previous history of optic neuritis, either at cataract surgery or
as an elective procedure. Oligoclonal bands were found in only one su
bject who suffered from the MS-uveitis syndrome.