Skip to main content

Table 3 Percentage of patients that gain or lose corrected vision after ICRS implantation

From: The use of intracorneal ring segments in keratoconus

Visual Acuity

Gain ≥ 1 line CDVA

Lost ≥ 1 line CDVA

Lost ≥ 2 lines CDVA

CDVA ≥ 0.6

GRADE I + II

37.90 %

36.29 %

25.80 %

CDVA ≤ 0.4

GRADE IV + PLUS

82.85 %

10.00 %

4.28 %

  1. CDVA= corrected distance visual acuity, ICRS= intracorneal ring segment