Myopia Progression Predictor — Complete User Guide
Axial length-based myopia prediction model, growth curve analysis, and evidence-based myopia control intervention recommendations.
myopia progressionaxial lengthmyopia predictionmyopia controlorthokeratologylow-dose atropine
Why Predict Myopia Progression?
Myopia (especially high myopia) significantly increases risks of serious ocular complications including retinal detachment, myopic maculopathy, glaucoma, and cataracts. Early prediction and intervention can slow progression and reduce complication risks.
Key Indicators
Axial Length (AL)
Axial length is the most reliable indicator of myopia degree and progression. Compared to refractive error, axial length:
- Less affected by accommodative fluctuations
- More accurately reflects underlying myopia status
- Better predictor of pathological myopia risk
Normal Axial Length Range
- Newborn: 17-18mm
- Adult emmetropia: 23-24mm
- Each 1mm increase ≈ 2.5-3.0D myopia increase
Myopia Control Methods
| Method | Efficacy | Suitable For |
|---|---|---|
| Orthokeratology (OK lens) | 30-60% reduction | Children 8-18 years |
| Low-dose atropine (0.01-0.05%) | 50-60% reduction | Children 4-18 years |
| Multifocal soft lenses | 30-50% reduction | Children 8-18 years |
| Increased outdoor time | 20-30% reduction | All children |
Precautions
- Axial length should be measured with IOL Master or partial coherence interferometry
- Growth rate >0.4mm/year in children warrants intervention
- Combined interventions (OK lens + atropine) may be more effective
References
- Holden BA, et al. Global Prevalence of Myopia and High Myopia. Invest Ophthalmol Vis Sci. 2016.
- Walline JJ. Myopia Control: A Review. Eye Contact Lens. 2016.