Brisbane · Surgical planning · Keratoconus

The next generation of keratoconus surgery, planned with precision.

CAIRSPlan is the surgical planning resource for Corneal Allogenic Intrastromal Ring Segment surgery — built by the team that introduced CAIRS to Australia and authored the Brisbane nomogram for femtosecond-laser CAIRS.

Open CAIRSPlan Legacy CAIRSPlan What is CAIRS?

Dr Brendan Cronin and Dr David Gunn at Focus Vision, Brisbane, reviewing a CAIRS surgical plan. — Dr Brendan Cronin · Dr David Gunn

Focus Vision · Queensland Eye Institute · Brisbane

Published, taught and practised at

Clinical & Experimental Ophthalmology
Brisbane nomogram for femto-CAIRS
Focus Vision
Queensland Eye Institute
University of Queensland

Published outcomes

Eighty-five eyes. One nomogram.

Outcomes from the Brisbane femto-CAIRS series — every eye plotted.

85 eyes · 75 patients · all severity grades · mean follow-up 7.5 mo · Gunn, Cox & Cronin, Clin Exp Ophthalmol 2026.

Read the paper

−0.4

UDVA gain

logMAR, p < 0.001

−0.2

CDVA gain

logMAR, p < 0.001

43.7%

Gained ≥ 5 lines

31 of 71 eyes (UDVA)

Significant complications

Across 85 eyes

What is CAIRS

Minimally invasive corneal surgery for keratoconus.

Corneal Allogenic Intrastromal Ring Segments — first described by Dr Soosan Jacob in 2018 — are donor-tissue ring segments placed inside the cornea to reshape it. CAIRS replaces synthetic ICRS in many patients and avoids the risk profile of corneal transplantation.

Read the full overview

01

Tissue-additive

Donor corneal tissue is implanted to flatten the cone — no patient cornea is removed.
02

Reversible

Implants can be exchanged or removed if the corneal shape changes over time.
03

Sutureless

Femtosecond-laser channel placement, fast recovery, minimal disturbance of vision.
04

Broadly applicable

Suitable across keratoconus severity grades, including patients ineligible for laser therapies.