How We Help

scope of practice is broad,
there are many things we do

We see with our brain. Vision is fundamentally a source of Stress. If we become too stressed, we move into Distress and our efficiency drops. How well we cope with the stress of our sensory input decides how normal the world appears to us.

  • Examination of the Visual Perception, taking into account the patients age, growth & development, health, needs and wants.
  • Dyslexia Assessments, Irlen Diagnostics and Motor Integration testing.
  • Formulating a unique Management Plan for every patient, sometimes on referring to other practitioners.
  • Prescribing Therapeutic spectacle lenses with Focus power, Prism power and Precision Spectral Filter tints to optimize your perception.
  • Prescribing Optometric Vision Therapy to optimize your Eye Control and your perception.
    Specific training and retraining of neural functions with the Interactive Metronome.
  • Reporting to patient, parents, teachers and to GP.
  • Ongoing management through our computer-based Recall system.
Irlen coloured lens glasses with the irlen logo


Helen Irlen was the creator of coloured lens treatment protocol for perceptual processing difficulties. The Irlen Method has helped tens of thousands of patients by providing a long-term solution to reading problems, headaches, light sensitivity, ADD and ADHD, autism and many other ailments – by directly addressing a core problem: the situations in there has been an overwhelming of the brain’s inability to process Visual information. If you or your child have been suffering, then you deserve to know more about the most widely used, research-based, and most effective solution available to you.

The symptoms of Irlen Syndrome are wide-ranging, but the solutions -Irlen coloured overlays and Irlen Spectral Filters (worn as either glasses or contacts) – are straightforward and available to you. Irlen addresses the underlying perceptual processing difficulties and light sensitivity that can contribute to reading difficulties, headaches, and attention difficulties.

Irlen Website
A girl doing schoolwork with the cellfield logo

Cellfield intervention

Cellfield is the first intervention to target the auditory, visual and motor pathways simultaneously. Cellfield targets visual, auditory and motor functions simultaneously. Clever software design expands working memory, strengthens attention and improves reading related motor functions.

Auditory – Specially designed sound parcels target auditory processing

Visual – Unique motion graphics and special lenses target visual processing

Auditory to Visual bridge – Cellfield is the only technology that bonds auditory and visual pathways, which allows the struggling reader’s brain to function more like a typical reader’s.

Motor pathways – To be truly effective, recent brain scan research shows that the auditory, visual and motor functions involved with reading must be activated and coordinated at the same time. This synchronized action allows the neural bonds between the letters and sound combinations to develop.  Linking auditory, visual and motor functions is vital to the reading process.

Cellfield Website
Irlen coloured lens glasses with the irlen logo

Optometric Vision Therapy

Optometric Vision Therapy

  • Evidence-based treatment of Strabismus, Amblyopia, Accommodation, Ocular Motor function and Visual-Perceptual-motor abilities.
  • A well proven and carefully structured process of improving a person's Visual skills.
  • Gives improved comfort, better reading and improved confidence.
  • Builds higher levels of efficiency and accuracy for sport and competition .

Optometric Vision Therapy techniques

  • Treatments vary according to the problems diagnosed in a person's Visual Skills.
  • We establish an individual Management & Treatment Plan.
  • Some techniques are surprisingly simple and low-tech while others use the very latest in computer-driven stimulation of Visual Perception.
  • We use Therapeutic spectacle lenses, Prisms, Filters, Occluders (eyepatches and penalization), Electronic targets with timing mechanisms and balance boards.

Optometric Vision Therapy assists these functions;

  • The ability to follow a moving object smoothly, accurately and effortlessly with both eyes and at the same time think, talk, read or listen without losing alignment of eyes.
  • The ability to fix the eyes upon a series of stationary objects quickly and accurately, with both eyes, and at the same time know what each object is.
  • The ability to change focus quickly, without blur, from far to near and from near to far, repeatedly and effortlessly and at the same time look for meaning and obtain understanding from the symbols or objects seen.
  • The ability to team two eyes together. This skill should work so well that no interference exists between the two eyes that can result in having to suppress or mentally block information from one eye or the other. Any undesirable shutting downgrading of information to one eye lowers understanding and speed, increases fatigue and distractibility, and shortens attention span.
  • The ability to see over a large area (in the periphery) while pointing the eyes straight ahead. For safety, self-confidence and to read rapidly, a person needs to see "the big picture," to know easily where they are on a page while reading and to take in large amounts of information, i.e., a large number of words per look.
  • The ability to see and know (recognize) in a short look. Efficient vision is dependent on the ability to see rapidly, to see and know an object, people or words in a very small fraction of a second. The less time required to see, the faster the reading and thinking.
  • The ability to see in depth. A child should be able to throw a beanbag into a hat 10 feet away, to judge the visual distance and control the arm movements needed. An adult needs to see and judge how far it is to the curb, make accurate visual decisions about the speed and distances of other cars to be safe.
  • The winning edge of sports performance. Even small percentage gains in Visual Efficiency can convert to podium positions for serious and social athletes.
Optometric Vision Therapy Website
A girl doing schoolwork with the cellfield logo

Interactive Metronome

Interactive Metronome

  • Evidence-based assessment and training of neural timing and synchronization of the brain.
  • Targeted at key brain networks for cognitive, communicative,sensory & motor performance.
  • Neural timing is what allows us to focus attention, to move and to think fluidly, to  process language and to read.
  • Accurate neural timing is one of the most critical factors inhuman performance.
  • Stress, head injuries, concussion and stroke can impair neural timing
  • We are certified providers of the Interactive Metronome for use in-Office and at IM-Home.

Interactive Metronome techniques can assist these conditions;

  • Autism
  • Auditory Processing Disorder
  • Cerebral Palsy
  • Developmental Delays
  • Dyslexia
  • Learning Disabilities
  • Alzheimer’s / Dementia
  • Brain Injury,  Concussions, Stroke
  • Parkinsons
  • Athletic Enhancement
  • Academic Improvement
  • Overall Wellness

Interactive Metronome assists these functions;

  • Attention
  • Processing Speed
  • Working Memory
  • Executive Functions
  • Self-Regulation
  • Expressive and Receptive Language
  • Reading Comprehension, Rate & Fluency
  • Mathematics
Interactive Metronome Website
Irlen coloured lens glasses with the irlen logo


RightEye Vision System™ is the world’s best eye-tracking tool for assessment of basic eye movements and reading eye movements - it is nothing like traditional vision tests and it is only available at VisionLink at Shattky Optometrists.

About 30% of people have Binocular Vision issues or OculoMotor Dysfunction. These problems usually have a huge impact on reading development and sporting performance.

Patients who have had brain injury or concussion usually know that they have lost comfort and efficiency in their vision and reading - RightEye can determine the severity of their impairment and assign on-line retraining of these key functions, and so facilitate a return to employment.


While all optometrists understand the importance of testing for these issues, only RightEye can measure eye control to millisecond accuracy, enabling more accurate diagnosis and treatment.

Patients of all ages can be screened quickly and easily for their eye control, and additional RightEye tests are used when there is a reading problem.

A detailed graphic report is produced and our Optometrists will immediately discuss and explain the results with you.

RightEye Website
Irlen coloured lens glasses with the irlen logo

HTS Vision Therapy Applications

This American company has many research-based Optometric Vision Therapy programs that use the scientifically-proven methods of behaviour modification (Operant Conditioning). They have been designed by a Behavioural Optometrist, clinically proven, and successfully used by thousands of patients.

They are game-like in nature so that improvement takes place almost effortlessly.

Individuals of all ages from five years and above can benefit.

They are based on a user-friendly computer applications that will run on almost any personal computer.

They may be used with sessions lasting approximately twenty minutes.

We here at VisionLink set the specific protocol that is appropriate for your child to ensure their progress and they received on-screen praise to keep them going.

At the end of each therapy session the computer will display their results and record their progress for future review.

This aids with motivation as you head towards the therapy goals.

Because they are web-based we can review your child's progress by logging into the portal, modify their program, and send notes right from your computer.

HTS2 - Home Therapy System

This program can be used for patients with;

  • OculoMotor Dysfunction
  • Covergence Insufficiency
  • Accommodation Insufficiency
  • Accommodation Infacility

PTS II iNet - Perceptual Therapy System

This program is used for patients with weaknesses in;

  • Dyslexia, Reading, Word decoding, Rapid Automatized Naming, Spelling, Reading comprehension
  • Memory, Simultaneous Processing, Sequential Processing, Speed-of-information processing
  • Visual-Temporal Processing
  • Laterality-Directionality deficits
  • Mathematics difficulty
  • Perceptual-cognitive deficits from Acquired Brain Injury
  • Attention disorders

PVT - Perceptual Visual Tracking System

This program can be used for patients with weaknesses in;

  • Ocular Motility, print stability on page
  • Rapid Automatized Naming, Temporal Visual processing, Fluency of reading
  • Visual Attention, Maintaining Concentration, Completing tasks in set times
  • Speed of Visual Processing
  • Reversals of letters and numbers, Orthographic Processing,

ADR iNet - Automated Dynamic Reader iNet

This Reading Therapy has a unique comprehensive three-step program;

  • Moving Text Dynamic Reading,
  • Standard Dynamic Reading
  • Whole Line Dynamic Reading

This program can be used for patients with weaknesses in;

  • Regression eye movements (the tendency to repeatedly look back to previous words while reading)
  • Developing briefer fixations (eye stops) during reading
  • Reading speed, Reading comprehension, Fluency
  • Attention, Concentration
  • Reading discomfort, Reading pleasure

Sub iNet - Optometric Vision Therapy for Subitizing

Subitizing is the ability to immediately recognize and know the number value of small numbers of objects.

It is a vital visual perception skill that is a precursor to basic math skills including numeracy and visual counting.

Many school-age children that have math difficulties also exhibit significant subitizing deficits.

These weaknesses are sometimes diagnosed as Dyscalculia.

This program can be used for patients with weaknesses in;

  • Subitizing
  • Math Skills
  • Visual Attention, Visual Memory, Visualization

AmbP iNet - Optometric Vision Therapy for Amblyopia

This program can be used for patients with;

  • Amblyopia (Blunt Vision) - suppression of Visual Acuity to lessen the stressful awareness of double vision.

The program automatically alters stimuli characteristics to stimulate improve Visual Acuity by reducing higher level neural suppression.

Patients begin therapy with targets that are easily seen and become progressively smaller as therapy progresses.

Therapy can be performed monocularly or monocularly in a binocular field.

Results are graphed cumulatively to clearly show gains.

HTS Vision Therapy Solutions Website

Reading Problems, Dyslexia and Learning Difficulties

  • When Reading is difficult and child cannot learn basic reading skills or use the reading skills that they have been taught.
  • Problems with flow, fluency, and comprehension.
  • Other problems may exist and instruction or remediation may be necessary.

Gifted and Average Students with Good Reading Skills

  • Spend longer to complete homework
  • Physical complaints of headaches, strain, or tiredness when reading or at school
  • Avoids reading or reading for pleasure
  • Does poorly on timed tests or standardized tests
  • Unable to keep up with reading assignments
  • Listens in class rather than doing assigned reading
  • Finds it easier to learn from discussion than reading
  • Works hard to get grades but feels that s/he is brighter than grades indicate
  • Considered lazy or unmotivated. Told they could do better if tried harder

Headaches, Migraines and Other Physical Symptoms

  • Discomfort in sunlight
  • Discomfort in bright lights or fluorescent lights
  • Prefer dim lighting
  • Bothered by headlights at night
  • Bothered by glare
  • Discomfort with computer use
  • Stress or strain with sustained reading
  • Stress or strain from visually-intensive activities
  • Difficulty looking at stripes or patterns
  • Certain colors are bright and bothersome
  • Snow, rain, and hazy days can appear to be glary

Light Sensitivity

  • Bothered by glare, fluorescent lights, bright lights, sunlight and sometimes lights at night.
  • Some individuals experience physical symptoms and feel tired, sleepy, dizzy, anxious, or irritable.
  • Others experience headaches, mood changes, restlessness or have difficulty staying focused, especially with bright or fluorescent lights.

Attention Deficit Disorder (ADD/HD)

  • Problems concentrating when reading or writing
  • Easily distracted when reading or writing
  • Distracted when under fluorescent lights
  • Daydreams in class Problems staying on task with academic work
  • Problems starting academic tasks

Autism and Asperger Syndrome

  • Looks in a series of short glances
  • Looks away from visual targets
  • Squints or looks down
  • Finger flicks
  • Sideway glances
  • Poor eye contact
  • Rubs or pushes on eyes
  • Mesmerized by colors, patterns, or light Behavior changes in bright lights or sunlight
  • Poor spatial or body awareness
  • Light sensitivity
  • Difficulties with stairs, escalators, or catching balls
  • Poor small or gross motor coordination

Traumatic Brain Injuries, Head Injuries, Concussions and Whiplash

  • Reading. Problems because of a change in clarity or stability of the print.
  • Sustained Attention and Concentration. Problems with ease and comfort reading.
  • Light Sensitivity. Being in bright light, and driving at night can be uncomfortable.
  • Physical Symptoms such as headaches, nausea, dizziness and irritability.
  • Depth Perception. Problems with the ability to judge depth or spatial relationships.
  • Fatigue. General sense of being tired and fatigued.
  • Neurological Problems

Light-induced seizures, tremors, or other similar problems

  • Psychological, Medical and Visual Problems
  • Low Vision/Visually Impaired
  • Light-Induced Epilepsy
  • Depression
  • Anxiety
  • Strokes
  • Chronic Fatigue Syndrome
  • Multiple Sclerosis
  • Auto Immune Diseases
  • Cerebral Palsy


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Kiwi's know that good things take time, so come to us, have the tests done without feeling that you have been "rushed thru", and you'll know what we mean when we say "we take the time!"

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In many ways, the test of our work is the change we see in our patients. If they are happy, we are happy. If they are able to be helped, you can be confident that so can you be helped. These are real people from in and around Hawkes Bay, join them in their success!