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Visual Perception Dysfunction

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When the brain fails to interpret and processing of visual information is known as Visual Perception Dysfunction. 

Visual Perception


Visual perception dysfunction is not tested using an eye chart. The ability to read the 20/20 row does not mean a person is free of visual perception deficits. 

Visual perceptual deficits can affect day to day activities as well as academic performance including sports and also in areas such as reading and math.

Commonly individuals with visual perceptual deficits are encouraged to “work harder” or to “try harder”.

Disorders of Visual Perception


Treatments:

Unfortunately, individuals do not outgrow visual perceptual dysfunction and cannot overcome them by simply working harder. 

Visual perception, or visual processing dysfunction, refers to deficits in the ability to make sense of information that is taken in through the eyes.

Visual perceptual skills involve the ability to interpret and organize the information that is seen and give it meaning.

Visual information processing skills include:

Form discrimination: the ability to identify differences and similarities in shape, size, pattern, color, position and form to notice detail differences. The relative position of one object to another and (where is my body in relation to space, others and objects) and the orientation of objects.


Spatial relations: the ability to judge the internal awareness of the two sides of the body.


Object recognition can interfere with the ability to consistently recognize letters, numbers, symbols, words or pictures.


Figure ground: the ability to locate a distinct or figure shape against a crowded background (such as crowded numbers or words on a page).


Visual closure: the ability to identify or recognize an object or symbol without seeing all of the details or object or in other words (the ability to know a word without needing to look at each individual letter every time the word reappears).


Form constancy: the ability to recognize numbers, letters and shapes when they are made larger, smaller or turned a different direction.


Visual memory: the ability to remember letters forms and sequences of words and recognize them quickly when you see them again in print.


Whole / part relationships: the ability to perceive the relationship between the pieces that make up the whole.






Comments

  1. SB Optical20 February 2025 at 15:25

    Very informative blog! Visual perception dysfunction can be challenging, but a tailored low vision solution can help individuals better process and interpret visual information.

    ReplyDelete

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