Retinal Degenerations and Retinitis Pigmentosa

Our physicians are highly experienced in evaluations of patients with established diseases of the retina, the multi-layered sensory tissue that lines the back of the eye.

Electroretinography (ERG) is a test to measure the electrical response of the eye's light-sensitive cells (rods and cones).  We perform ERG testing in two location at Mass Eye and Ear. Most referred patients come to the Electroretinography Service (phone 617-573-3621)  for diagnosis, prognosis and genetic counseling. The testing is also conducted upon referral with or without consultation in the Retina Service (phone 617-573-3288).

We provide training to residents, fellows, and medical students in the use of specialized measures of retinal function in the assessment of retinal disease. More than 500 pieces of information from each patient are stored in a computerized data base for clinical research.

Diagnosis

The ERG Service provides specialized testing — including computerized, full-field, and focal ERGs — as well as measures of dark adaptation threshold, color vision and letter recognition macular perimetry. Additionally, we evaluate the macula with optical coherence tomography (OCT) in selected cases. Such medical advances allow us to make a careful and accurate diagnosis.

Specialized testing includes computerized electroretinography, which allows us to determine the extent of the condition and to estimate its future course. The testing and consultation will generally require an entire day spent in the ERG Service.

Treatment

Treatment from the ERG Service is tailored for each condition. In the case of retinitis pigmentosa, we often treat patients with vitamin A. In conditions where applicable, visual aids are prescribed, including the ITT Night Vision pocket scope, which allows night-blind patients to achieve their best daylight vision under conditions of dim illumination. Other treatments may be discussed with your physician, based upon diagnosis. More information on vitamin A treatment here.

Appointments

Patients of six years and older are seen by our ERG Service physicians in consultation at Mass. Eye and Ear. Appointments must be arranged several weeks in advance. Copies of results of any previous ocular examinations would be helpful.

Both the ERG Service and the Retina Service schedule patient appointments between 8:30 am and 5:00 pm weekdays.

To arrange an appointment in the ERG Service on a physician’s referral, please contact:
Electroretinography (ERG) Service
Massachusetts Eye and Ear Infirmary
243 Charles Street
Boston, MA 02114
Phone: (617) 573-3621
FAX: (617) 573-3661

To arrange an appointment in the Retina Service, please phone (617) 573-3288.

Page Updated: 2/9/11