Your child will wear contact lenses while sleeping.
Naturally, this may raise questions.
Can children safely use overnight lenses? What happens if a lens becomes dirty? How can parents reduce the risk of infection?
Ortho-K can be worn safely by suitable children under professional care. However, it remains a contact lens treatment. Therefore, it is not risk-free.
Correct fitting matters. Hygiene matters too. In addition, parents need to recognise warning signs and attend every recommended review.
This Ortho-K safety checklist for parents explains the daily steps that help support safer lens wear.
What Is Ortho-K?
Orthokeratology, commonly called Ortho-K, uses custom rigid gas-permeable contact lenses.
The child wears the lenses during sleep. The lenses temporarily change the shape of the cornea, which is the clear surface at the front of the eye.
The child removes the lenses after waking. They may then experience clearer vision during the day without glasses or daytime contact lenses.
The effect is temporary. Therefore, the child must continue wearing the lenses according to the prescribed schedule.
Ortho-K may also form part of a myopia management plan for suitable children. However, treatment response varies.
Eye Philosophy’s Orthokeratology service in Melbourne explains the fitting process, corneal mapping and follow-up care offered at its Williamstown and Doncaster clinics.
Is Ortho-K Safe for Children?
Research suggests that Ortho-K can have an acceptable safety profile when qualified practitioners fit the lenses and families follow appropriate care routines.
However, complications can occur.
Possible problems include:
- Corneal staining
- Eye irritation
- Lens binding
- Inflammation
- Fluctuating vision
- Glare or haloes
- Corneal infection
- Microbial keratitis
Microbial keratitis is a serious infection of the cornea. It can cause pain, redness and reduced vision. It requires urgent professional care.
A 2024 study examining microbial keratitis linked with overnight Ortho-K found an incidence comparable with rates reported for daily-wear soft contact lenses. However, the risk was not zero. Read the Ortho-K microbial keratitis study.
A separate systematic review found that Ortho-K may provide vision and myopia-management benefits. However, it also reported adverse events and emphasised the need for careful safety monitoring. Read the systematic review of Ortho-K benefits and risks.
Therefore, parents should avoid two extremes.
Do not assume that Ortho-K is dangerous simply because it involves overnight wear. However, do not treat the lenses like ordinary accessories.
They are prescribed medical devices that require a careful routine.
Why Is Ortho-K Different From Accidentally Sleeping in Contact Lenses?
Most daytime contact lenses should not be worn during sleep.
Ortho-K lenses are different because they are specifically designed and prescribed for overnight use.
However, this does not remove the need for caution.
The lens material, design, fit and wearing schedule must suit the child’s eyes. In addition, the optometrist must inspect the cornea during follow-up appointments.
The US Centers for Disease Control and Prevention advises contact lens wearers to avoid sleeping in lenses unless an eye-care practitioner has directed them to do so. It also advises users to wash and dry their hands, avoid water exposure and use the recommended cleaning solution. Read the CDC contact lens safety guidance.
A child should never sleep in ordinary daytime lenses as a substitute for Ortho-K.
Likewise, they should never wear another person’s lenses.
Ortho-K Safety Checklist for Parents
The exact lens-care routine can vary between products.
Therefore, always follow the instructions given by your child’s optometrist. Do not replace a prescribed step with advice from social media, friends or an old contact lens routine.
1. Start With a Full Suitability Assessment
Safe Ortho-K wear begins before the first lens reaches the eye.
The optometrist should assess:
- The child’s prescription
- Corneal shape
- General eye health
- Tear-film quality
- Eyelid health
- Pupil size
- Previous contact lens use
- Hygiene habits
- Sleep routine
- Ability to follow instructions
- Parent availability for supervision
The practitioner may use corneal topography to create a detailed map of the front of the eye.
This map helps guide lens design and future reviews.
Ortho-K may not suit a child with active eye inflammation, infection, significant dry eye, certain corneal conditions or poor hygiene habits. Eye Philosophy’s Ortho-K frequently asked questions also notes that suitability depends on the eye’s condition and the wearer’s ability to maintain appropriate hygiene.
2. Decide Who Will Supervise the Routine
Young children usually need active parent supervision.
Do not assume that a child can manage the full routine because they can insert the lens once during a teaching session.
A parent may need to supervise:
- Handwashing
- Hand drying
- Lens removal from the case
- Cleaning
- Rinsing
- Insertion
- Removal
- Case care
- Solution replacement
- Checking the eye for redness
As the child becomes more confident, they may take on more responsibility.
However, the parent should continue checking the routine until the optometrist agrees that independent handling is appropriate.
3. Wash Hands Before Touching the Lenses
The child and parent should wash their hands with soap and clean running water.
Next, they should dry their hands fully with a clean, lint-free towel.
Wet hands can transfer water and microorganisms to the lenses.
Long fingernails can also scratch the lens or the eye. Therefore, keep nails clean and manageable.
Do not handle Ortho-K lenses after touching:
- Food
- Pets
- Makeup
- Hair products
- Cleaning chemicals
- Soil
- Electronic devices
Wash and dry the hands again first.
4. Keep Ortho-K Lenses Away From Water
Do not rinse Ortho-K lenses with tap water unless the optometrist has specifically given a product instruction that says otherwise.
In general, contact lenses should stay away from:
- Tap water
- Bottled water
- Distilled water
- Shower water
- Pool water
- Spa water
- Seawater
- Saliva
Water can contain microorganisms that may cause serious eye infections.
The child should remove their lenses before showering, swimming or entering a spa.
Because Ortho-K lenses are normally removed in the morning, they should not be in the eyes during daytime swimming.
Still, the child should wear suitable swimming goggles to help protect the eyes.
5. Use Only the Recommended Lens-Care Products
Use the disinfecting and cleaning system prescribed for the specific Ortho-K lens.
Do not change products without asking the optometrist.
Different products may contain different preservatives or disinfecting ingredients. Some may not suit the lens material or the child’s eyes.
Avoid:
- Homemade saline
- Expired solution
- Reusing old solution
- Mixing two care systems
- Using ordinary eye drops as disinfectant
- Using saliva to wet the lens
- Topping up yesterday’s solution
Fresh solution should be used according to the care instructions.
6. Clean the Lens After Removal
The exact cleaning method depends on the prescribed product.
The optometrist may instruct the child to:
- Place the lens in a clean palm.
- Add the recommended cleaning solution.
- Rub the lens gently using the correct technique.
- Rinse it with the approved solution.
- Place it into the clean storage case.
- Add fresh disinfecting solution.
Parents should watch the amount of pressure used.
Ortho-K lenses are rigid. However, they can still crack, chip or scratch.
Never press the lens between two fingertips. Instead, follow the handling method taught by the clinic.
7. Care for the Lens Case
The storage case can collect contamination.
Therefore, it also needs regular care.
Follow the prescribed instructions for:
- Emptying old solution
- Cleaning the case
- Rinsing it with approved solution
- Air-drying it
- Keeping the caps open while drying
- Replacing the case
The CDC advises contact lens wearers to clean cases with lens solution, dry them upside down with the caps off and replace them at least every three months. However, follow the optometrist’s schedule when it is more frequent.
Do not clean the contact lens case with tap water.
8. Inspect Each Lens Before Insertion
Before the child inserts a lens, place it under good lighting.
Check for:
- Cracks
- Chips
- Scratches
- Cloudiness
- Deposits
- Dust
- Hairs
- Makeup
- Discolouration
- A damaged edge
Do not insert a damaged or dirty lens.
Also, check that the right lens goes into the right eye and the left lens goes into the left eye.
Lens cases may use colours or labels to separate the lenses. However, parents should confirm the system used by their clinic.
9. Check the Child’s Eyes Every Morning
After lens removal, look at both eyes.
Ask the child:
- Does either eye hurt?
- Does one eye feel gritty?
- Are lights uncomfortable?
- Is the vision unusually blurry?
- Does one eye feel different from the other?
Also, look for:
- Redness
- Swelling
- Discharge
- Excessive watering
- Difficulty opening the eye
- A white spot on the cornea
- Unusual sensitivity to light
Do not ignore symptoms simply because the child has school or sport.
It is safer to stop lens wear and seek advice than to continue wearing a lens over an irritated eye.
10. Follow the Prescribed Wearing Schedule
Do not increase the wearing time to achieve faster results.
Likewise, do not reduce the schedule without discussing it with the optometrist.
Ortho-K creates a temporary effect. Therefore, missed nights can cause vision to fluctuate.
Your child should keep current backup glasses available.
Backup glasses may be useful when:
- A lens is lost
- A lens becomes damaged
- The eyes feel irritated
- The child is unwell
- The optometrist advises a break
- The family travels
- The lenses require replacement
Never encourage the child to wear a painful lens simply because they need clear vision the next day.
11. Attend Every Recommended Review
Follow-up appointments allow the optometrist to assess more than daytime vision.
The practitioner may check:
- Corneal health
- Lens position
- Lens movement
- Treatment-zone location
- Corneal topography
- Daytime visual clarity
- Prescription changes
- Axial length
- Lens cleanliness
- Lens condition
- Hygiene technique
- Comfort
- Glare or haloes
A child may report clear vision while the lens fit creates an unwanted change on the cornea.
Therefore, clear vision does not replace professional review.
Eye Philosophy provides children’s eye tests and myopia management at its Williamstown and Doncaster clinics. The recommended review schedule will depend on the child’s eyes and treatment stage.
12. Know When to Stop Lens Wear
Stop Ortho-K lens wear and contact the clinic promptly if your child has:
- Eye pain
- Increasing redness
- Light sensitivity
- Discharge
- Sudden or unusual blurry vision
- A persistent foreign-body feeling
- Swelling
- Difficulty opening the eye
- A visible mark on the cornea
- Symptoms that continue after removing the lens
Do not wait until the next routine appointment.
Also, do not restart lens wear until the treating practitioner advises that it is appropriate.
Seek urgent care when symptoms are severe or vision changes suddenly.
What Should Parents Do if a Lens Falls on the Floor?
Do not place it straight back into the eye.
First, locate the lens carefully. Then, inspect it under good lighting.
If the lens looks damaged, do not use it.
If it appears intact, clean and disinfect it according to the exact instructions provided by the optometrist.
A quick rinse may not be enough.
When in doubt, contact the clinic before reuse.
What if the Child Accidentally Uses Tap Water?
Remove the lens.
Do not continue wearing it.
Next, contact the optometrist for advice about cleaning, disinfection or replacement.
The correct response may depend on:
- The care system
- The type of water exposure
- How long the lens was exposed
- Whether the lens was placed into the eye
- Whether symptoms are present
Do not guess.
What if the Lens Feels Stuck in the Morning?
An Ortho-K lens may sometimes feel difficult to remove.
Do not pull or force it from a dry eye.
The optometrist may provide lubricating drops and a specific removal technique.
Ask the child to blink. Then, follow the taught method.
If the lens remains difficult to remove, contact the clinic.
Forcing the lens may irritate the cornea or damage the lens.
Can a Child Wear Ortho-K While Sick?
Ask the treating optometrist for guidance.
A child with a cold, fever or other illness may have watery eyes, poor sleep or reduced energy for safe handling.
Some illnesses may not require a break. However, eye redness, discharge or suspected conjunctivitis should never be ignored.
Stop lens wear when the child has signs of an eye infection.
Also, avoid sharing towels, pillowcases or lens supplies with other family members.
Is the Child Ready for Ortho-K?
Age alone does not decide readiness.
Some younger children follow detailed routines well. Meanwhile, some teenagers struggle with hygiene and consistency.
Consider whether the child can:
- Follow instructions
- Stay calm during insertion
- Report discomfort honestly
- Avoid touching their eyes with dirty hands
- Accept parent supervision
- Attend follow-up appointments
- Keep lenses away from water
- Avoid sharing products
- Stop wearing lenses when symptoms appear
Parents must also consider their own availability.
If no adult can supervise the routine, a specialised spectacle lens may be more practical.
Does Good Hygiene Remove Every Risk?
No.
Good hygiene helps reduce avoidable risk. However, it cannot guarantee that a complication will never occur.
A carefully managed child may still experience:
- Irritation
- A damaged lens
- Lens displacement
- Corneal staining
- An inflammatory reaction
- Infection
This is why informed consent and follow-up care matter.
Parents should understand both the possible benefits and the risks before starting.
What Happens During an Ortho-K Fitting?
The fitting process may include:
- A comprehensive eye examination
- A review of myopia progression
- Corneal topography
- Tear-film assessment
- Eyelid examination
- Lens design
- A fitting or collection appointment
- Insertion and removal training
- Hygiene training
- Early follow-up visits
- Ongoing myopia monitoring
The optometrist may adjust or replace the lenses if the fit does not meet clinical expectations.
Not every child achieves complete daytime correction.
Some may still need glasses for certain activities. Others may notice glare, haloes or fluctuating vision, especially during the early fitting period.
Questions to Ask Before Your Child Starts Ortho-K
Parents can ask:
- Why do you think Ortho-K suits my child?
- What are the possible risks?
- What result can we reasonably expect?
- Who should supervise lens care?
- Which cleaning system should we use?
- What happens if a lens touches water?
- What warning signs require urgent care?
- How often will follow-ups occur?
- Will you measure axial length?
- What happens if my child misses a night?
- Will my child receive backup glasses?
- How often will the lenses need replacement?
- Who should we contact after clinic hours?
- What are the initial and ongoing costs?
The practitioner should provide clear answers before treatment begins.
Ortho-K Assessments in Williamstown and Doncaster
Eye Philosophy Optometrists provides Ortho-K assessments, children’s eye examinations and myopia management from two Melbourne locations.
Williamstown Clinic
28 Douglas Parade
Williamstown VIC 3016
Phone: (03) 9397 5895
Doncaster Clinic
700 Doncaster Road
Doncaster VIC 3108
Phone: (03) 9042 0977
Eye Philosophy’s current contact page lists these clinic addresses and phone numbers. Opening hours appear in more than one section of the page and are not fully consistent. Therefore, confirm the current hours directly when booking.
Final Thoughts on the Ortho-K Safety Checklist for Parents
Ortho-K can form part of a child’s myopia management plan.
However, the lenses require more than a quick bedtime routine.
Safe wear starts with a detailed assessment. It then depends on clean hands, approved solutions, no water exposure, parent supervision and regular professional reviews.
Most importantly, parents and children must respond quickly to warning signs.
Never continue lens wear through pain, significant redness, discharge or unusual vision changes.
Good hygiene cannot guarantee a complication-free experience. Still, a structured routine can help reduce avoidable risks and support informed use.
The next article reviews the broader clinical evidence behind Ortho-K safety in children. These topics are connected because this guide explains the daily safety routine, while the related article examines the research and common concerns behind overnight lens wear.
Read our next blog about “Is Ortho-K Safe for Kids? Evidence-Based Myopia Control for Children” here: Read the related Eye Philosophy blog.
Book your appointment here: https://eyephilosophy.com.au/contact-us/