If you have any questions or concerns regarding reduced visual clarity, loss of visual field, or a change in color vision, our experts can provide insight. We offer diagnostic work-ups, second opinions and monitoring for many vision conditions of known and unknown etiologies. In addition, we are equipped to provide comprehensive color vision evaluations for vocational purposes. 

About Us

The Vision Functions and Electrophysiology Clinic is at the forefront where vision science and clinical knowledge meet. It is one of the primary referral centers in Northern California for specialized vision testing. Performing non-invasive tests which typically can not be found in general eye care practices.

Our Services

A primary referral center for specialized vision testing

We conduct a series of tests that are specifically tailored to each of our patients in order to examine visual functions. Our vision experts investigate functions of retinal and macular cells, visual pathway disorders, color and night vision problems, visual field deficits, and vision loss of unknown etiology. Results and interpretation are provided in a report.

Referrals & Self-Referrals

Clinical Visual Electrophysiology

We perform visual electrophysiology tests in accordance with standards set by the International Society for Clinical Electrophysiology of Vision (ISCEV). Available clinical electrophysiology tests include: ERG (Electroretinogram), mfERG (Multifocal ERG), PERG (Pattern ERG), VEP (aka VER, Visual Evoked Potential or Response), and Sweep VEP.  Additional vision function tests include: Dark Adaptation (full curve or final thresholds), Goldmann Visual Fields, Contrast Sensitivity (Pelli-Robson), Glare testing (Berkeley Glare Tester, or Brightness Acuity Tester), and Color Vision.

Color Vision Testing

Our clinic specializes in color vision testing for vocational purposes. Some professions that require color vision assessment include: Federal Aviation Authority, Maritime Industries, Coast Guard, Police and Fire Departments, Military Academies, FBI, CIA, Border Patrol, and American Gem Society 

Color tests that are available include the hard to find Farnsworth Lantern Test (FALANT). Others include the Farnsworth-Munsell 100 hue test, D-15, Ishihara, Dvorine, AOC 1965 plates, Hardy-Rand-Rittler (HRR) plates, the anomaloscope, and many others.

Commonly Referred Conditions

  • Retinitis Pigmentosa
  • Usher syndrome
  • Cone-rod dystrophy
  • Stargardt disease
  • Best disease
  • Achromatopsia Nystagmus
  • Congenital Stationary Night Blindness (CSNB)
  • Pigmentary retinopathy (dystrophy versus inflammatory)
  • Juvenile X-linked retinoschisis
  • Hereditary Dominant Optic Atrophy
  • Leber Congenital Amaurosis (LCA)
  • Optic neuropathy

Vision Functions Facts

The Vision Functions Clinic is where vision science, research, and clinical knowledge meet.

Many of our tests can be conducted on babies and children. Please contact our clinic with questions or concerns about youngsters.

Contact Us

Appointments can be made in person or by telephone.

Vision Function Clinic
Herbert Wertheim School of Optometry & Vision Science
200 Minor Addition
UC Berkeley
Berkeley, CA 94720

(510) 642-2020

Clinic Chief
Emily Gorski, OD
Associate Clinical Professor