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Ir.M.A. - Infrared Measurement and Analysis of Accommodation and Vergency
Jindra, Tomáš ; Dušek, Jaroslav (advisor) ; Páta, Petr (referee)
This work is dealing with design of the systém for measuring dynamics of the vergence and accommodation. Vergence accommodation synkinesis is a complex process controlled by various mechanisms in CNS. Deviations from physiological state of the vision process are projected to course of the vergence accommodation curves and is possible the quantitative and qualitative evaluation. For this purpose was designed the measuring system Ir.M.A. (Infrared Measurement of Accommodation). The system uses high-speed videometric device for determination of the relative vergence and relative accomodation of the eyes. Stimulation of the patient's eyes is performed by the standardized jump change of the fixation object distance. The object is reconstruted by holographic method. Measured videosequences are processed by the image analysis. Results of the image analysis are courses of the vergence and accommodation curves depending on time and characteristics of the curves. System is designed for using in clinical practice where it could be used as screening instrument for diagnostics of the oculomotor system disorders.
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Photoscreening of the Amblyogenic Eye Disorders
Zárubová, Alena ; Dušek, Jaroslav (advisor) ; Páta, Petr (referee)
This work deals with an evaluation of effectivity of regional photoscreening of amblyogenic factors in children's population younger one year from catchment area of Center for functional defects of vision, Hospital Litomyšl. Photoscreening tests included to this study was realizationed in 2001 - 2005 in 1 275 children. Photoscreening is based on principle of excentric photorefraction. A modified camera Yashica 109 was used for phototests, which photoes records on standard cine-film.
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Evaluation of Mammographical Densities
Hána, Vojtěch ; Hozman, Jiří (advisor) ; Páta, Petr (referee)
Breast density has been identified as an important risk factor in the development of breast cancer. The purpose of this diploma work was to create software for evaluation mammography images and to allow doctors to study relationships between breast parenchymal density and breast cancer as well as enable monitoring the progress of treatment. It was created application Mamodens, what contains functions for displaying image records of mammography, tools for image processing and statistical output of measured values. This application will be used at the Department of Diagnostic Radiology at the General University Hospital in Prague to support diagnostic of the breast cancer.
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