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Researchers develop a halometer that tests alterations in night vision
Date:3/24/2011

This press release is available in French and Spanish.

Researchers from the Department of Optics of the University of Granada, belonging to the Laboratorio de Ciencias de la Visin y Aplicaciones, have developed a programme for testing alterations in night vision, and the tool required to implement it, which has been named "halometer".

This instrument consists on a software named Software Halo v1.0, and a computer where the mouse is used as a response button, and a chin cup with a forehead holder to fix the observer's position. Software Halo v1.0 was initially presented as freeware available on LabVisGra's website at http://www.ugr.es/local/labvisgr and at the University of Granada's institutional repository at http://digibug.ugr.es/handle/10481/5478. Nevertheless, it was recently released by the Free-Software Bureau of the University of Granada so, it has become a scientific freeware application.

This software was developed by a group coordinated by Rosario Gonzlez Anera, receiving technical support of the Granadian company Seven Solutions and of an ophthalmological clinic set in Madrid and named Novovision. The research group was integrated by researchers Jos Juan Castro, Carolina Ortiz and Aixa Alarcn, and receives fundings from the regional government of Economy, Innovation and Science of the Junta de Andaluca.

Low-Light Conditions

Before the test, researchers fix the observer's position with a chin cup and a forehead holder at an adequate distance from the monitor where the test will be displayed and considering the angular diameter that light stimuli must have.
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Contact: Jos Juan Castro
jjcastro@ugr.es
34-958-241-902
University of Granada
Source:Eurekalert  

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