Comprehensive Visual Information Processing Evaluation

Why a Visual Perceptual Evaluation?

The most comprehensive way to determine if a vision problem is contributing to you or your child’s challenges is a Full Visual Information Processing Evaluation , also known as a Visual Perceptual Examination.

The time required for the VIP testing is usually 1½ hours . The time may vary depending on the specific needs of the child.

This type of evaluation will involve a standardised battery of tests that looks at both visual skills and visual processing. It also assesses visual perception, which is the ability of the brain to interpret, analyse and give meaning to what is seen; which goes beyond the scope of a routine eye exam.

The results are scored at age or grade equivalents, which identify the patient’s strengths or weaknesses in visual processing abilities. This is important for accurate diagnosis and effective therapeutic strategies.

Upon completion of this testing, recommendations will be included as to whether glasses, and/or vision therapy might be helpful or if referral to another professional (such as occupational therapist, speech therapist, tutor, psychologist, etc.) is appropriate.

WHAT IS INCLUDED IN A VISUAL PERCEPTUAL EXAMINATION?

PART 1:

An evaluation of external and internal eye health, colour vision ,refraction for optical prescription, and evaluation of the functional visual abilities of oculomotor control (eye tracking), accommodative ability (focusing) binocular control (eye teaming ability) and stereopsis (binocular depth perception).

PART 2: SUPPLEMENTAL TESTING

The purpose of this testing is to determine how the visual system processes information, how vision integrates with the other sense modalities, and to determine whether vision is supporting or interfering with performance to full potential. Some of the areas that will be evaluated include:

  • Visual Discrimination: The ability to visually discriminate similarities and differences.
  • Visual Analysis Skills
  • Visual Memory: The ability to remember the characteristics of a given form after a brief presentation.
  • Visual Spatial Relationships: The ability to see differences among forms when all or a part of a form has a different spatial orientation.
  • Visual Form Constancy: The ability to see the essential elements of a form, and identify them within other forms that may be smaller, larger, rotated, reversed or hidden within other designs.
  • Visual Sequential Memory: The ability to remember for immediate recall a series of forms in their specific order of presentation.
  • Visual Figure Ground: The ability to perceive a form, and to locate it when embedded within other forms.
  • Visual Laterality and Directionality: The ability to correctly determine spatial directional properties of individuals, objects, and language symbols.
    Visual Motor Integration: The ability to take in, analyze, and reproduce visual information using paper and pencil.
  • Visual Form Perception
  • Visual Auditory Integration
  • Movement and Motor Organisation Screening : Bilateral Integration and Primitive Reflex Probes
  • At times, further testing utilizing specialized diagnostic equipment such as The Visagraph Computerized Eye Movement Recording Test may be performed depending on reading ability. This instrument uses goggles with infrared optics to test reading efficiency number of fixations, regressions and other characteristics of eye movement during reading.

PART 3:

At the end of the evaluation the optometrist will determine the nature and extent of the visual dysfunction, and review the diagnostic findings, prognosis, therapeutic recommendations and to answer any questions and concerns you might have regarding the testing.

 

REPORT: A comprehensive report can be requested at the completion of this testing. An additional fee applies , accounting for the time required for its preparation. This report will detail the testing performed, the specific visual abilities evaluated, and how the patient performed. It will discuss the implications of the visual dysfunction on performance in academic, sports and daily activities and will make recommendations for remediation of the visual problems. At your request, copies of the report will be made available to the school and other professionals currently caring for the patient.

WHAT TO CONSIDER WHEN MAKING THIS APPOINTMENT?

It can be difficult for some children to maintain their concentration for such a long time, we may divide the testing over two visits when necessary; or we suggest conducting this type of test in the morning during the weekdays, rather than late in the afternoon, when attention is worse.

If the child is sick, we request you to postpone the appointment until they recover.

We urge parents not to bring along their sibling as they can distract the child being tested.

We request that both parents be present at this consultation wherever possible, especially in families in shared care situations.

A deposit is required at the time of making the booking. A cancellation fee will be charged for missed appointments without 72 hours notice.

Your child will benefit from:

  • Our caring approach
  • Our assessments are specifically chosen to target functional vision problems
  • Our expertise and knowledge of the link between vision and learning
WHAT TO BRING TO THIS APPOINTMENT?

If your child has been booked for a Visual Perceptual Evaluation, please visit our Forms section to download and complete the parent and teacher questionnaires. You will need to bring these to your appointment.

Mt Annan Eyecare Visual Information Processing Exams

Call us to request your appointment