I canali che vengono scavati nella cornea per l'inserimento degli anelli sembrano dare risultati migliori se effettuati con l'ausilio del laser (invece che in maniera meccanica).

more flattening effect was achieved, that is up to 3 D with a small channel of 6.6 by 7.4 mm compared with 1 D of effect with a larger channel that was 6.6 by 8.6 mm.

"Six months after the procedure, the six patients (100%) achieved a BCVA of 20/20 to 20/40. At 3 months after the procedure, seven of 13 patients (53%) were contact lens tolerant, five (38%) did not attempt contact lens wear, and one patient (9%) was not able to tolerate contact lenses. No prescription inserts had to be removed. Importantly, the channels were not too shallow in any of the 20 patients,"

http://www.ophthalmologytimes.com/ophth ... ?id=150427

PS Personale: Se c'è una cosa che mi fa morire in questo mondo... è la faccia di Rabinowitz