hemianopsia.ORG

hemianopsia, 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 , increased incidence of falls and accidents and reading problems.

Results from the National Health and Nutrition Examination Survey (1988-1994) indicated that 1 in 1000 people examined had hemianopsia. At least one third of stroke survivors in rehabilitation have either homonymous hemianopsia or spatial neglect.

If you have found this website we are assuming that you, a loved one, or a client has been diagnosed with hemianopsia and you are attempting to find out what treatment options are available to aid in mobility.

There are at least four options:

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.

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)    scanning activities

4.          VRT (Vision Restoration Therapy) a computer-based therapy aimed at              activating the brain: up to 5˚ expansion has been reported.  As of     April 2010, this is temporary unavailable in the US.      

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™.

           HEMIANOPIA.ORG

Hemianopic View

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, increased incidence of falls and accidents and reading problems.

 

Results from the National Health and Nutrition Examination Survey (1988-1994) indicated that 1 in 1000 people examined had hemianopia. At least one third of stroke survivors in rehabilitation have either homonymous hemianopia or spatial neglect.

 

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 three options:

 

1.  The Peli Lens™, the newest and most effective prism technique offers more field expansion than any other option, by far: 20º in the original design and 30º 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 1/4º  of field enhancement.

             b.  The InWave lens, a straight edge prism, usually with 6º of field               enhancement.

 

3.  Training to scan (vision therapy)    scanning activities

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™.

This website last updated July 24, 2013    Copyright Chadwick Optical © 2009

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