What is myopia and why is it a concern for children?

Myopia (nearsightedness) is a vision condition where distant objects appear blurry while close objects remain clear. In children, myopia typically develops during school years and may progress over time. Managing myopia early is important because higher levels of myopia are associated with increased risk of certain eye health conditions later in life.

What treatments are available for myopia control?

Several evidence-based treatments are available to help slow myopia progression in children. These include specialty contact lenses (such as orthokeratology and multifocal soft lenses), low-dose atropine eye drops, and specialized spectacle lenses. A myopia control specialist can help determine the best option based on your child's individual needs.

How do I find a myopia control specialist?

Use our specialist directory to find eye care professionals who specialize in myopia management in your area. Look for optometrists or ophthalmologists with specific training and experience in pediatric myopia control treatments.

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Ortho-K Fitting: Best Practices and Troubleshooting

Dr. Ortho-K Specialist Team

February 9, 2026

2 min read

Clinical guidance for successful orthokeratology fitting and managing common challenges.

Ortho-K Fitting: Best Practices

Successful orthokeratology requires careful fitting and ongoing management. Here's expert guidance.

Patient Selection

Ideal Candidates

Myopia: -0.50 to -6.00D
Astigmatism: up to -1.75D (with toric designs)
Age: 6+ years
Motivated and compliant
Good hygiene habits

Relative Contraindications

Dry eye disease
Corneal abnormalities
Poor hygiene
Unrealistic expectations
Inadequate sleep duration

Pre-Fitting Evaluation

Essential Measurements

Corneal topography
Pupil size
Tear film assessment
Corneal diameter
Refraction (cycloplegic for children)

Baseline Documentation

Axial length
Best-corrected visual acuity
Corneal health assessment
Detailed topography maps

Lens Selection

Design Considerations

Reverse geometry design
Appropriate base curve
Adequate landing zone
Proper diameter

First Lens Selection

Use manufacturer guidelines
Consider corneal shape
Account for prescription
Plan for refinement

Fitting Assessment

Ideal Fit Characteristics

Centered treatment zone
Adequate movement
Good tear exchange
Comfortable wear

Topography Patterns

Bull's eye: ideal
Smiley face: flat fit
Frowny face: steep fit
Central island: various causes

Troubleshooting Common Issues

Decentration

Causes: lid tension, flat fit, poor lens design
Solutions: adjust fit, change design, modify parameters

Inadequate Effect

Causes: insufficient wear time, poor fit, high myopia
Solutions: ensure compliance, refit, consider alternatives

Discomfort

Causes: edge lift, debris, dry eye
Solutions: adjust fit, improve hygiene, treat dry eye

Central Islands

Causes: various
Solutions: modify fit, change design, increase wear time

Follow-Up Protocol

Initial Period

Day 1: assess fit and effect
Week 1: refine as needed
Month 1: confirm stability
Month 3: establish baseline

Ongoing Care

Every 6 months: comprehensive check
Annual: new topography baseline
As needed: troubleshooting

Documentation

Essential Records

All topography maps
Lens parameters
Visual acuities
Axial length measurements
Patient compliance notes