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The "EP" or Expansion Prism system.
By using the "EP"-Horizonal system you are able to obtain patients suffering from Hemianopic Scotoma. Using 40 Diopter Fresnel press-on prisms, an image is able to be "grabbed" from the blind side and moved to the seeing side in the patients peripheral vision.
The "EP" system is designed to help with obstacle detection, especially while moving, it is not a reading aid.
Patient fitting is simple and cost effective using the fitting protocol provided and making adjustments as needed during the training walk with the patient. The patient then is sent home to adjust for about one month.
For more information about Hemianopia visit www.hemianopia.org Catalog #4201 $35.00 USD - EP Temporary Prism Set - 1 pair prisms - call to order
Catalog #4202 $40.00 USD - EP Temporary Prism Set with fitting guide - 1 pair prisms - call to order Catalog #4203 $90.00 USD - EP Temporary Prisms - Bulk Pack - 4 pair prisms - call to order
Archives of Ophthalmology study - Open here
- 20 degree field expansion
- 50% acceptance rate at 12 month follow-up
- Backed by clinical trials
- Unobstructed central vision
- No image jump
- Cosmetically appealing
- Simple to fit (protocols provided)
 HEMIANOPIC FIELD  FIELD OF VISION WITH EP PRISMS
 THE "EP" PRISM SYSTEM FITTED FOR A PATIENT
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