How to use this page
Use the questions as a checklist before booking. The optometrist still needs to examine the child before recommending a management plan.
Ashfield NSW local optometrist
Myopia progression calculator for parent education.
This is an educational guide, not a prediction. It helps parents understand which details an optometrist considers when discussing myopia progression and treatment options.
Myopia progression calculator at iFocus Optometrists
Educational myopia progression estimator for parents, explaining age, current prescription, progression speed, family history, screen time and treatment discussion points.
At a glance
- Current age
- Current prescription
- Change over 12 months
- Family history
- Outdoor time and screen habits
Reviewed by: Dr. Shirley Wang, B.Optom UNSW
Qualifications: Bachelor of Optometry, University of New South Wales
Languages: English, Mandarin Chinese, Cantonese Chinese
Last medically reviewed: July 2026
| Parent question | Why it matters | What to bring |
|---|---|---|
| How old is your child? | Younger onset can mean more years for progression to occur. | Child's age and school year. |
| What is the current prescription? | Baseline prescription helps track change. | Current glasses and any written prescription. |
| How much has it changed in 12 months? | Fast change may need closer review. | Previous prescriptions if available. |
| Is there family history of myopia? | Family history can influence risk. | Parent and sibling glasses history. |
| How much near work and outdoor time? | Habits can be part of the clinical conversation. | Typical screen, reading and outdoor routines. |
Myopia risk estimator
This education tool is not a diagnosis. It helps parents prepare for a myopia consultation.
Enter details to estimate risk.
Projected outcomes are only estimates
Online calculators can illustrate why myopia control matters, but they cannot predict an individual child's future prescription.
What iFocus can discuss
Depending on suitability, the optometrist can discuss spectacle lens options, Ortho-K, contact lens options, referral pathways and review timing.
When to book sooner
Book if the prescription is changing quickly, the child squints, has headaches, struggles to see the board or there is a strong family history of myopia.
Common questions
Is this a real medical calculator?
No. It is an educational checklist to help parents understand myopia progression factors before an eye test.
Can a calculator tell which treatment my child needs?
No. Treatment suitability requires an optometrist assessment of prescription, eye health, lifestyle and family needs.
What should I bring to a myopia consultation?
Bring current glasses, previous prescriptions, family history details and notes about screen time, outdoor time and school symptoms.