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It is not necessary in every case that patients with irregular astigmatism should be denied the benefits of new technology IOLs, or NTIOLs.
While corneas with RK incisions, diffuse ectasia, significant post-infectious scarring, distortion from healed lacerations or advanced rheumatologic limbal ectasia are usually poor candidates, three conditions common to corneal practice allow potentially gratifying outcomes with appropriate preparation and documented stability when implanting