Orthokeratology

i-Night
Orthokeratology

Swiss-made overnight ortho-K lenses that gently reshape the cornea during sleep — delivering clear daytime vision and proven myopia control for children and young adults.

CE Marked Swiss Made Orthokeratology Myopia Control
i-Night Orthokeratology lens — worn overnight for myopia control
How It Works

Clear Vision During the Day. Worn Only at Night.

i-Night uses precision reverse-geometry lenses worn overnight to gently reshape the anterior corneal surface. On removal each morning, the cornea retains its new shape — giving the patient clear, unaided vision throughout the day without glasses or contact lenses.

Beyond vision correction, i-Night is one of the most clinically validated non-pharmaceutical methods for slowing childhood myopia progression — reducing the stimulus for axial elongation over time.

  • Clear daytime vision — no lenses or glasses needed during the day
  • Effective myopia control — slows axial elongation in children
  • Suitable for myopia up to −6.00D (case-dependent)
  • Swiss Made, CE Marked — Appenzeller Kontaktlinsen AG
Full Product Details at Appenzeller ↗
How Ortho-K Works
How Ortho-K Works — four stages of overnight corneal reshaping
The cornea is gently reshaped overnight — removed each morning for clear, unaided daytime vision.
Clinical Evidence

Why Choose i-Night Orthokeratology

30–60%myopia progression reduction

Proven Myopia Control

Multiple peer-reviewed studies report 30–60% reduction in axial elongation rate compared to spectacle correction in children and young adults.

−6.00Dmaximum correction

Wide Correction Range

Corrects myopia up to −6.00D (case-dependent). Lower prescriptions achieve full-day correction from the first few nights of wear.

Fully Reversible

No permanent corneal change. If lens wear is discontinued, the cornea returns to its original shape within 48–72 hours. Safe for long-term use.

Daytime Freedom

No spectacles or contact lenses during the day. Ideal for children in sports, swimming, or dusty environments where daytime lens wear is impractical.

CE Marked — Swiss Quality

Manufactured by Appenzeller Kontaktlinsen AG in Switzerland. CE marked under EU Medical Device Regulation. ISO 18369 compliant manufacturing.

Clinical Support by Cosmos

Cosmos Enterprises provides fitting guidance, topography-based parameter selection support, and training for i-Night orthokeratology across India.

FAQ

Common Questions About Orthokeratology

What is orthokeratology?

Orthokeratology (Ortho-K) is the use of specially designed rigid gas-permeable lenses worn overnight to temporarily reshape the corneal surface. Upon waking and removing the lenses, the cornea provides clear unaided vision throughout the day. The effect is reversible and requires nightly lens wear to maintain.

Does ortho-K slow myopia progression in children?

Yes. Multiple peer-reviewed studies report 30–60% reduction in myopia progression rate with orthokeratology compared to spectacle correction. The peripheral defocus created by the Ortho-K lens on the retina is believed to suppress the axial elongation signal that drives myopia progression.

How much myopia can i-Night correct?

i-Night can correct myopia up to approximately −6.00D, depending on the case. Patients with lower prescriptions (−1.00D to −4.00D) typically achieve the most complete and stable full-day unaided vision. Cases above −4.00D may require individual assessment by a Cosmos Enterprises clinical consultant.

Is orthokeratology safe for children?

Orthokeratology is considered safe for children when fitted by trained eye care professionals with appropriate follow-up. i-Night lenses are CE certified to European medical device standards. Key safety factors include correct lens fit via corneal topography, strict hygiene education, and regular clinical reviews every 3–6 months.

Interested in i-Night Ortho-K?

Contact Cosmos Enterprises to enquire about i-Night, request a trial set, or discuss a patient case.