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HEMIANOPIA.ORG |
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Hemianopia, also known as Hemianopsia is loss of vision in either the right or left sides of both eyes; a common side effect of stroke or brain injury. This vision loss causes serious problems with mobility, bumping into objects and increased incidence of falls and accidents.
If you have found this website we are assuming that you, a loved one, or a client has been diagnosed with hemianopia and you are attempting to find out what treatment options are available to aid in mobility.
There are at least four options. 1. The Peli Lens™, the newest and most effective prism technique offers more field expansion than any other option, by far: 20˚ in the original design and 30˚ in the new design. These are backed by clinical trials. 2. Two similar optical systems using prisms a. The VFAS (Visual Field Awareness System), a round prism: usually designed with 9 1/4˚ of field enhancement. b. The InWave™lens, a straight edge prism: usually With 6˚ of field enhancement. 3. Training to scan (vision therapy) 4. VRT (Vision Restoration Therapy) a computer-based therapy aimed at activating the brain: up to 5˚ expansion has been reported.
Based on clinical research, patient success rates, field expansion characteristics and cost, the Peli Lens™ represents the best option for a majority of hemianopic patients. The other methods mentioned here are viable options in the event that the patient does not adapt to the Peli Lens™. |
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This website last updated May 12, 2009 Copyright Chadwick Optical © 2009 |
