K.R.
I am a mom of 3 and an optometrist in the Fremont area. I attended UC Berkeley's School of Optometry. They have a Special Visual Assessment Clinic for those patients who need to be evaluated in more creative ways. Patients do not need to be verbal, and they will give a very thorough eye exam in a specialized exam room that caters to special needs.
Their web site, including phone numbers (I recommend calling the clinic to request SVAC specifically), address, and info can be found at:
http://www.caleyecare.org/index.html