Night lenses are rigid gas-permeable contact lenses worn during sleep. They selectively and temporarily reshape the cornea. This alters the eye's refractive power, allowing for clear vision during the day without glasses or contact lenses. The effect is reversible – if the night lenses are no longer worn, the cornea gradually returns to its original shape.

No. The change affects the anterior corneal shape, the epithelial layer, and is temporary. After discontinuing the orthokeratology lenses, the effect gradually reverses.

That's not how it should be described. The change arises from the interplay of lens geometry, tear film, and corneal surface. The goal is a targeted, uniform, and temporary alteration of the corneal shape.The outer cell layer of the cornea is pulled towards the periphery.

Many people notice a significant improvement after the first night. However, full visual acuity may not be achieved immediately. How quickly the effect develops depends, among other things, on the initial refractive error and the individual shape and thickness of the cornea.From the initial examination to the finished night lens – discover our fitting process

For some users, the effect is very quick, while for others it develops over several days. Some adjustments take up to a few weeks until stable visual acuity is achieved.Typically, approximately -2 diopters are corrected after the first night.

With a properly functioning prescription, visual acuity is usually maintained throughout the day. The exact duration varies from person to person and depends on factors such as the refractive error, the cornea, and how regularly the prescription is worn.Generally speaking, you don't need glasses for driving in the evening if your prescription is up to about -4.00 diopters.

We have glasses of different strengths available on site for this situation.You can use these to test whether full visual acuity is achieved in the evening with glasses, e.g. -0.50 diopters.

For maximum transparency, we will fully calculate the costs for the first year.​Total cost of night lensesPreliminary measurement €40 + Adjustment €150 + 12 × €64€958 in the first year / €768 from the second year onwards​Multifocal night lensesPreliminary measurement €40 + Adjustment €150 + 12 × €84€1,198 in the first year / €1,008 from the second year onwards​From the second year onwards, the one-time preliminary measurement and adjustment fee is waived; only the respective monthly supply continues.All costs and services at a glance: