The law states that the employer must provide "adequate" accomodations for the employee even if it includes making necessary adjustments to the work area or furniture/equipment, even if this means sending the employee for neuro/psyc testing to determine what you can/can't do.
That way it is documented and the employer can determine what modifications are required for your job, or necessary modifications to your job description.
This only proves again that there are so many people out there from the "old school" who still think that if you have epilepsy or a seizure condition, you are a bad person or possessed by the devil.
The only way the employer can get arount this is if they can PROVE that the disabled employee is a danger to themselfs or others like a heavy equipment operator or airline pilot etc OR if they can PROVE that the job has become redundant.
Up here in Canada, an employer can face stiff fines for discriminating or even jail time.
I would not however recommend taking them to court because they will get a good lawer and find a loop hole to get out of the charge BUT they shoud be reported to the Department of Labour or threaten to go to the media and then let the cards fall where they may.
I talk from experience as my employer of over 29 years descriminated against me but since I work for the Canadian Government, I knew the proper chanels to go through and after a 4 year fight, I won the battle, they terminated my job and put me on termination with full pay until Feb/05 and then DISABILITY insurance after that for 2 years at 75% of my full pay and then medical retirement 'til age 65 and then my pension. So they're paying me to stay home.