Nearsightedness: Corneal Ring Treatment: References

Karacal H, Pathak A, Feldman B. Intrastromal Corneal Ring Segments (ICRS) American Academy of Ophthalmology. http://eyewiki.aao.org/Intrastromal_Corneal_Ring_Segments_(ICRS). Updated Jan 20, 2015. Accessed October 2016.