Intrastromal Corneal Ring Segment Implantation (Keraring 355°) in Patients with Central Keratoconus: 6-Month Follow-Up

Figure 2

Mean change in visual acuity. Mean uncorrected visual acuity (a) and best spectacle-corrected visual acuity (b) after Keraring 355^° implantation during the follow-up period.

(a)

(b)