How night lenses work
The principle is simple: while you sleep, the lenses correct your eyes without you noticing. Their special shape ensures that the front of the cornea flattens slightly, which improves your vision. Depending on the stiffness of the cornea, this provides sharp vision for 1 to 2 days, while your eyes get complete rest during the daytime. Visser works with night lenses from the FreeView programme, which consists of expert advice and intensive guidance, including regular follow-up checks.
Children and contact lenses
Pros
- Good daytime vision without glasses or contact lenses
- Optimal results after one week
- No final surgery
Cons
- When stopped, it takes time for the cornea to return to its normal shape
- During that time, the strength of the eye varies considerably
- This strength change must be absorbed by wearing daily contact lenses
- Regular check-ups are necessary when stopping
Frequently asked questions
With night lenses (also called FreeView lenses), you always pay for the fitting process first (see Rates without Visser Service subscription).
- Re-fitting: For people who already wear night lenses.
- New fitting: for people who do not yet wear night contact lenses. You will be instructed how to insert, remove and maintain the lenses.
After the fitting procedure, you subscribe to a Visser Service subscription. This subscription includes all checks and most other services (free of charge, see Rates with Visser Service subscription). Night lenses are offered in a subscription form as standard. For FreeView lenses, you pay a deposit of €75 per lens. This deposit is refunded as soon as the lenses are returned, regardless of their condition, provided this is done within three months of termination of the subscription.
You wear night lenses in a subscription from €36,80 per month (from april 2025 €38,45). The amount includes checks (every 6 months for adults and every 3 months for clients under 18) and new lenses every year.
Are you younger than 22? Then you will receive a €5 discount on the monthly amount.Orthokeratology lenses exert corrective pressure during the night on (the epithelial cells of) the central cornea, which is thereby flattened (to the extent necessary). During the day, when the lenses aren’t worn, the cornea only retracts very slowly, allowing the wearer to see clearly without the use of aids.
Because orthokeratology lenses are worn during the night, less moisture reaches the eye. This can make the eye quite dry. In the past, it was thought that this would lead to more infections. However, studies have shown that ortho-k lenses do not lead to a significantly higher number of infections. Since the very start, Visser Contactlenzen has only prescribed night lenses under strict protocols. The fact remains that the risk of infection with night lenses is by definition higher than with soft myopia-inhibiting lenses. If your child’s myopia can be slowed down using soft myopia-inhibiting lenses, this option is always preferable to ortho-k lenses.