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Refractive Surgery Week - ICRS!

Final post of Refractive Surgery Week!

7. Intracorneal Ring Segments (ICRS).

-Incomplete rings made up of PMMA to flatten the central cornea.

-Used to treat myopia, Keratoconus, Post-LASIK ectasia.


-Act as passive spacers in the mid-periphery and shorten the arc length of anterior corneal surface, there-by flattening the central cornea.


-Central clear cornea (no scarring).

-Contact lens intolerance.

-Keratometry 46D-60D.

-Minimum corneal thickness 450 microns.





-Myo Ring.

-The channels can be created by using a mechanical blade or a femtosecond laser.

Image from Rajan Eye Care Hospital⁣

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