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Binocular Vision & Vision Therapy
Convergence Insufficiency
Assessment and vision therapy for eyes that struggle to work together during reading and close work.

Difficulty holding focus up close
Convergence insufficiency is a binocular vision condition where the eyes struggle to turn inward together for close work. It affects around one in twenty school aged children and is a common cause of eye strain, headaches and losing your place while reading. Standard vision screenings usually miss it, because distance vision is often perfectly normal. A full binocular vision assessment is what identifies it.
What you should know?
What it is: the eyes have difficulty maintaining inward alignment at near, so extra effort is needed to keep a single clear image
Symptoms: eye strain, headaches after reading, words moving or blurring on the page, double vision, losing your place, and avoiding near tasks altogether
Often missed by school vision screenings, because distance vision is usually unaffected
Frequently mistaken for an attention or learning difficulty, since the child appears to lose focus during near work
How we assess it: near point of convergence measurement, positive fusional vergence testing, and a full cover test as part of a binocular vision assessment
Treatment: office based vergence and accommodative therapy with structured home reinforcement, which the Convergence Insufficiency Treatment Trial found more effective than home exercises alone
Affects adults as well as children, and can develop after a concussion or head injury
OrthoK
Ortho-K is a fitted medical device, so the fee reflects the mapping, the custom lens design and the follow up care rather than the lenses alone. The tier your child falls into is confirmed at the suitability assessment.
Tier 1
Standard Fit
Lower prescriptions with a regular corneal shape and no astigmatism of note.
$1,700
Full first year of care included
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Corneal topography mapping
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Custom lens design and first pair
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Overnight trial and morning review
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Four follow up visits across the first year
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Lens care training for parent and child
Tier 2
Advanced Fit
Higher prescriptions or moderate astigmatism needing a toric lens design.
$1,900
Full first year of care included
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Everything in the Standard Fit
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Toric or dual axis lens design
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Additional design iteration if required
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Six monthly axial length monitoring
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Priority booking for morning reviews
Replacement lenses
Ortho-K lenses are usually replaced every twelve to eighteen months, or sooner if they are lost, damaged or the prescription changes. Replacement pricing follows the tier your child was fitted in.
Fitting tier
Typical replacement interval
Per pair
Standard Fit
12 to 18 months
$1,000
Advanced Fit
12 to 18 months
$1,200
Complex Fit
12 months
$1,500
Included in Every Fitting Fee
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Suitability assessment and corneal topography
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Custom lens design and manufacture
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Insertion and removal training
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Scheduled follow up visits for the first twelve months
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Lens starter care kit
Charged Separately
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Your initial comprehensive eye examination
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Ongoing lens care solutions after the starter kit
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Reviews beyond the first twelve months
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Replacement lenses outside the schedule above
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Any treatment unrelated to the Ortho-K fitting

Four ways to slow myopia
There is no single best treatment. The right choice depends on your child's age, how quickly the prescription is changing, and what they will realistically stick to. Here is how the options compare.
See what a difference treatment makes
Move the sliders to reflect your child's situation and see how their prescription is likely to track over the next few years, with and without myopia management. Nothing you enter is saved or sent anywhere.

Frequently Asked Questions
Answers to the questions we're asked most often, from what to bring to your appointment to how bulk billing works. If you can't find what you're looking for, our team is always happy to help. Just give us a call.
Related services
Your eyes rarely need just one thing. Explore other services that often work alongside this one, or browse our full range of eyecare.
Paediatric Eye Examinations
Specialised eye examinations for infants, toddlers, and school-age children.
Binocular Vision Overview
Assessment and treatment of conditions where the two eyes struggle to work together as a team.


