CAIRS
OptiGraft® CAIRS
Sterile, laser-prepared allogenic ring segments for the surgical management of keratoconus and other ectatic disorders. From Lions World Vision Institute, available in South Africa through Evolution Vision.
Overview
How it is prepared
Epithelial and endothelial cells are removed. Intrastromal cells are devitalised through processing and electron beam sterilisation. The segments are femtosecond laser-cut and supplied sterile.
Symmetrical and asymmetrical designs are available.
Storage
OptiGraft segments keep for up to two years at room temperature.
Specification
The range
OptiGraft segments are precisely cut using a femtosecond laser, 550 µm thick, in three width geometries. Every segment is a 180 degree arc, 12 mm long.
Concentric arcs, 0.50 mm, 0.75 mm, 1.0 mm, 1.5 mm and 2.0 mm, even width along their length.
Tapered arcs, 1.0 mm, 1.5 mm and 2.0 mm, narrowing to 0.5 mm at one end.
Crescent arcs, 1.5 mm and 2.0 mm, tapering to 0.5 mm at each end.
Surgical planning
Dr David Gunn and Dr Brendan Cronin offer CAIRSPlan, a free online planning nomogram, at cairsplan.com.