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

been tried with different observer groups consisting of people operated on cataract or submitted to refractary eye surgery, with normal observers and patients with different eye pathologies as AMD (Age-related Macular Degeneration) and unilateral keratitis. The results obtained showed that, in the case of patients with keratitis, the visual disturbance index for the healthy eye was found to be lower than that for the unhealthy eye, and even lower under binocular vision conditions. However, visual disturbance indexes proved to be higher in the case of patients operated on cataracts, showing a higher influence of halos and, therefore, lower detection capacity. Patients operated with LASIK refractory eye surgery also presented high vision disturbance indexes in comparison to normal observers.

The results obtained with this halometer and the new software have been presented in different national and internacional conferences as the IX Reunin Nacional de ptica, Galice and the Wavefront Confress 2009. furthermore, a research article has been published in the international journal Applied Optics describing the results obtained with patients operated with refractory eye surgery. It has also been recently admitted for publication in the prestigious scientific journal Journal of Biomedical Optics, where the results obtained with patients with different eye pathologies are described.


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Contact: Jos Juan Castro
jjcastro@ugr.es
34-958-241-902
University of Granada
Source:Eurekalert  

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