Keraring Intrastromal Segment Depth Measured by Spectral-Domain Optical Coherence Tomography in Eyes with Keratoconus

Table 1

Keraring characteristics, uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), and mean keratometry (Km) of each patient.

Case	Eye	Keraring		UDVA		CDVA		Km (D)
		Model	Arc length (°)/; thickness (μm)	Pre	Post	Pre	Post	Pre	Post
1	RE	SI-5	160/300	0.04	0.10	0.50	0.80	50.15	48.68
2	LE	SI-5	120/200	0.10	0.10	0.60	0.70	50.82	49.77
		SI-5	120/200
3	LE	SI-5	160/250	0.10	0.10	0.40	0.70	49.31	45.12
4	LE	SI-6	150/150	0.10	0.20	0.70	1.00	43.89	43.48
5	RE	SI-5	160/300	0.30	0.80	0.50	1.00	45.27	43.41
6	LE	SI-5	160/250	0.10	0.20	0.60	1.00	42.98	41.19
7	RE	SI-5	160/250	0.30	0.60	0.70	0.90	51.49	49.00
8	RE	SI-5	160/250	0.08	0.60	0.60	0.90	45.39	43.68
	LE	SI-6	150/250	0.10	0.30	0.50	0.90	47.19	44.07
9	RE	SI-5	160/300	0.04	0.40	0.60	0.80	48.06	45.62
10	RE	SI-5	160/250	0.10	0.40	0.80	1.00	48.44	47.90
	LE	SI-5	160/200	0.20	0.40	0.90	1.00	49.45	46.15
11	RE	SI-5	160/300	0.10	0.10	0.70	0.80	50.10	49.31
12	RE	SI-6	150/200	0.40	0.80	0.90	0.90	46.48	45.74
	LE	SI-6	150/250	0.40	0.40	0.80	1.00	45.41	41.00
13	RE	SI-5	120/250	0.10	0.20	0.60	0.80	51.70	50.30
14	LE	SI-5	160/300	0.08	0.30	0.40	0.50	46.40	44.40
	LE	SI-5	90/150
15	LE	SI-5	160/250	0.20	0.30	0.60	0.80	45.95	44.20
16	LE	SI-5	160/250	0.10	0.60	0.50	0.80	50.30	50.00
17	RE	SI-5	160/250	0.06	0.20	0.30	0.80	46.75	45.60
18	LE	SI-5	210/200	0.06	0.30	0.40	0.70	49.04	46.83
19	RE	SI-5	160/250	0.10	0.40	0.40	0.80	49.40	45.96
20	RE	SI-6	150/300	0.10	0.40	0.80	0.80	46.12	45.17
21	RE	SI-5	160/300	0.10	0.10	0.50	0.70	45.64	41.19
MEAN				0.14	0.35	0.60	0.84	47.74	45.74
SD				0.10	0.21	0.17	0.13	2.44	2.79
Range				0.04–0.4	0.1–0.80	0.3–0.9	0.5–1	42.98–51.7	41–50.3

RE: right eye. LE: left eye. Eyes with intrastromal tunnel created using femtosecond laser. SD: Standard Deviation. D: diopters.