Spatial holograms in measuring of eye vergence and accommodation dynamics

Care about the human vision is the most important for infants, when the visual system still develops. Any disorder through this period could cause irreversible pathological changes of the visual functions. Children´ visual system is particularly sensitive to the refractive disorders, unsuitable optical corrections or retinal or visual pathways disorders. Diagnostics of infants´ amblyopia and oculomotor disorders uses already proved diagnostics methods. This work serves new additional method for investigation of the dynamic changes of the accommodation and vergence. This information describes some dynamical properties of human visual system that weren´t been commonly investigated. Patient´s visual system is stimulated by the step change of the fixation object distance. The object is realized by spatial laser reconstructed hologram. Videometric apparatus records dynamical changes of the vergence and accommodation. Subsequent image analysis processes information about accommodation and vergence of both eyes in the same time that is contained in each image of the videosequence.