Welcome!
Device and Programs for Diagnostics and Treatment of Binocular
and Stereoscopic Vision Impairments.
The device is intended
for diagnostics and treatment of strabismus, amblyopia and other binocular
and stereoscopic vision impairments, for cultivating, training and developing
of stereoscopic vision. The device can be useful both for children and for
special control in such fields of human activities as flying, navigation
and so on, where the stereoscopic vision have a great importance.
The device was
developed by Russia Cinema & Photo Research Institute in cooperation with
Moscow Medical University ( Disease of the Eye Department ) and Moscow
Helmholtz Institute of Ophthalmology.
The device
consists of IBM compatible computer, liquid crystal glasses ( LCG
), electronic controller for driving LCG and synchronization with IBM PC,
and special software.
The software
enables for train and develop stereoscopic vision, objective
measuring of some stereoscopic vision parameters (horizontal and vertical
phoria, fusion reserves, fixation disparity, stereoscopic visual threshold,
ets ).
Operation
of the device is based on alternative generation of pictures for left and
right eyes on the monitor screen. Controller gives pulses on LCG so that
plate for left or right eye opens synchronously with pictures. The frequency
of switching is more than 80 Hz and that's why the flickering is absent.
Thus, a separate demonstration of images to the left or to the right eye in turn
is obtained for patients being unaware and creates the conditions
of binocular perception close to natural ones without any additional separation
of vision fields.
The device is recommended for use in medical practice by Department of
Public Health and Medical Industry of Russia. The results of many tests
in numerous ophthalmologic clinics showed that the device improves the quality
of binocular functions, helps to increse fusion reserves, to decrese the thresholds of the depth perception and stereoscopic vision.
This page was written by Victor Elkhov. Questions or comments are
welcome.
Send email to elkhov@yahoo.com
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