Treatment
CAIRS – Allogenic Corneal Rings (KeraNatural)
CAIRS uses sterilised human donor corneal rings (KeraNatural), implanted with a femtosecond laser, to reshape the cornea and improve vision in keratoconus — a minimally invasive, tissue-friendly alternative to corneal transplant.
Recovery
Your Recovery Journey
Most patients return to normal daily activities within a day or two of CAIRS, though some discomfort and light sensitivity are common at first. It is important to be prepared that vision recovers gradually — over a number of weeks or longer.
Days 1-2
Some discomfort and sensitivity to light; most patients return to normal daily activities
- Use the prescribed anti-inflammatory (steroid) drops
- Avoid rubbing the eye
Week 1
It is advisable to take about a week off work; vision still settling
- Avoid eye rubbing and dusty or dirty environments
Weeks to months
Vision gradually recovers; soft contact lenses can be resumed as normal once settled
- A gas-permeable or hard lens may need ~1 month before comfortable wear
- Involve your contact lens practitioner before resuming lens wear
Aftercare
Aftercare Instructions
There are no dietary restrictions after treatment, and regular medications can be continued.
There are no lifestyle restrictions other than allowing time for vision to improve over several weeks or longer. If you are a blood donor, CAIRS has no effect on your ability to continue giving blood.
Pregnancy and breastfeeding are considered contraindications to treatment, as the effects in pregnancy are unknown. If a serious complication reduces your vision, this may affect your ability to drive and work — report any pain, redness or drop in vision to us promptly.
Quick Facts
Duration
Approximately 15 minutes per eye
Anaesthesia
Topical anaesthetic drops — no needle injection
Recovery
Most activities within 1-2 days; around a week off work; vision recovers over several weeks
Pain Level
Mild discomfort
Ready to Learn More?
Take our quick suitability quiz or book a consultation to discuss your options with your consultant.
Related
Understanding Your Condition
Learn more about the conditions this treatment addresses. Knowledge is the first step toward confident decision-making.
Take the Next Step
Book a consultation to discuss CAIRS – Allogenic Corneal Rings (KeraNatural) with your consultant. Transparent advice, no pressure, and a personalised plan for your vision.