Visual Perception Rx
Oculomotor control Visual Fields
Visual Acuity Visual Attention
Scanning Pattern Recognition Visual Memory
Visual Cognition
Diplopia, nystagmus, tracking and pursuit difficulties, convergence. Homonymous hemianopia (loss of visual field on the same side of both eyes, quadrantanopia (loss of vision affecting a quarter of the visual field)* Blurred vision, print to small Determine what (object identification) and where (orientation in space) Influenced by general alertness Evaluated through scanning Require visual attention to do scanning Difficulty accessing stored memories of images Difficulty constructing a 3D model of object from retinal image Difficulty comparing new model with old stored images Agnosia (inability to process sensory information), spatial relations, figure/ground
Adaption though vision *
Visual Perception Rx Remedial/restorative approach - Emphasis on component skills - Targets cause of dysfunction - Uses tabletop activities to improve underlying perceptual skills - Assumes it will generalise to other tasks Functional/Adaptive approach - Emphasis on occupational skills - Targets symptoms of dysfunction - Uses compensatory techniques and environmental adaption - Uses repetitive practice of tasks - Task specific
Visual Acuity Visual Attention
Scanning Pattern Recognition Visual Memory
Visual Cognition
Diplopia, nystagmus, tracking and pursuit difficulties, convergence. Homonymous hemianopia (loss of visual field on the same side of both eyes, quadrantanopia (loss of vision affecting a quarter of the visual field)* Blurred vision, print to small Determine what (object identification) and where (orientation in space) Influenced by general alertness Evaluated through scanning Require visual attention to do scanning Difficulty accessing stored memories of images Difficulty constructing a 3D model of object from retinal image Difficulty comparing new model with old stored images Agnosia (inability to process sensory information), spatial relations, figure/ground
Adaption though vision *
Visual Perception Rx Remedial/restorative approach - Emphasis on component skills - Targets cause of dysfunction - Uses tabletop activities to improve underlying perceptual skills - Assumes it will generalise to other tasks Functional/Adaptive approach - Emphasis on occupational skills - Targets symptoms of dysfunction - Uses compensatory techniques and environmental adaption - Uses repetitive practice of tasks - Task specific
