SIMULATION AND MODELING METHODS USED IN OPTOMETRIC FIELD FOR ASSESSING VISUAL FUNCTIONS BEHAVIOR
SIMULATION AND MODELING METHODS USED IN OPTOMETRIC FIELD FOR ASSESSING VISUAL FUNCTIONS BEHAVIOR

Summary/Abstract: In this paper some practical aspects about assessing visual functions in optometric field using simulation and virtual environments are presented. In the first part of the paper some theoretical and experimental considerations about the eye movements, gaze direction, optical image on the retina and correlation between them and the posture of human head are presented. For this purpose we use virtual environments to simulate different movements of the eyes and also optical modeling of the visual process. First of all it is important to analyze the movements of the eyes and also the modeling of image creation on the retina surface according to the illumination and normal accommodation process. In the same analyze it is necessary to establish relations between biomechanical movements of the eyes and energy consumption in these process. In the second part of the paper we presented the experimental setup used to record the eye movements and the human head posture in possible situations and actions. In the final part of the paper we analyzed the recordings of eye movements for a human subject during time experiments correlated with the eye gaze direction and simulations using virtual environments. It is very important to develop, to optometry specialists, practical skills using virtual methods for knowing the possibilities of all procedures. These methods for simulation and modeling visual function can help specialists from optometric field to understand, to analyze different forms of visual behavior and to develop personalized assessment procedures, correction and adaptation of visual impairments. Also the results, conclusions and future applications of these researches are presented.

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