Evaluation of a Tangential Map-Based Nomogram for Intrastromal Corneal Ring Segments’ Implantation in Keratoconus: One Year Results

Table 5

Postoperative outcomes of both groups at follow-up visits.

Variable	3 months			6 months			12 months
	Axial	Tangential		Axial	Tangential		Axial	Tangential
UDVA	0.23 ± 0.07	0.3 ± 0.07	0.04	0.25 ± 0.07	0.4 ± 0.1	0.02	0.28 ± 0.08	0.5 ± 0.2	0.01
CDVA	0.36 ± 0.1	0.35 ± 0.1	0.3	0.38 ± 0.1	0.6 ± 0.2	0.005	0.4 ± 0.1	0.7 ± 0.2	0.006
MRSE	−1.5 ± 1.8	−2.2 ± 1.5	0.5	−1.3 ± 1.7	−1.4 ± 1.2	0.9	−1.00 ± 1.6	−1.2 ± 1.1	0.8
Kmax	47.3 ± 2.4	45.5 ± 3.2	0.4	45.2 ± 3.3	44.9 ± 2.3	0.6	45 ± 3.7	44.5 ± 2.7	0.3
Km	50.3 ± 3.1	52 ± 4.8	0.5	49.7 ± 3.8	49 ± 4.6	0.3	48.8 ± 3.9	50 ± 4.7	0.6
Q value	−0.6 ± 0.3	−0.5 ± 0.7	0.3	−0.45 ± 0.8	−0.39 ± 0.69	0.2	−0.4 ± 0.6	−0.38 ± 0.5	0.5
Thinnest location	451 ± 49.1	409 ± 35.8	0.1	455 ± 21.2	443 ± 36.7	0.2	467 ± 15.2	428 ± 39.9	0.4