Outdoor Sunlight
Outdoor Sunlight
Outdoor time is a useful part of a child’s routine whether or not they wear Ortho-K. Evidence is stronger for reducing the chance of myopia starting than for slowing established myopia. It should complement, rather than replace, a prescribed treatment plan.
School-based studies have tested additional outdoor time and found fewer new cases of myopia in some groups. Results vary with the programme and population, so a single study does not define a guaranteed daily dose for every child.
Make outdoor activity practical and sun-safe, with shade, a hat, suitable sunglasses and other appropriate sun protection. Children do not need to look at the sun or seek unsafe ultraviolet exposure.
Ortho-K wearers should follow their clinician’s instructions about swimming and water exposure. Keep lenses away from tap water, swimming water and saliva, and continue scheduled reviews even when daytime vision seems clear.
Your Ortho-K questions answered
Can outdoor time replace Ortho-K?
No. If Ortho-K has been prescribed, discuss changes with your clinician. Outdoor habits do not replace the lens-care routine or monitoring of established myopia.
Can a child swim while wearing Ortho-K lenses?
Ortho-K lenses are usually removed for daytime activities. Do not swim or shower in them; water exposure increases the risk of contact lens infection. Follow your practitioner’s instructions.
Arrange an individual assessment · Ortho-K benefits and risks · Daily lens care
Further reading: International Myopia Institute evidence review. For broader childhood myopia information, visit Myopia Prevention.