Table 2

Polarimetric values measured with customised corneal compensation at baseline and on days 1 and 6 after uncomplicated LASIK. The definitions of the parameters are shown in Table 1

	Baseline (1)		Day 1 (2)		Day 6 (3)
SLP-C parameter	Mean (SD)	95% CI	Mean (SD)	95% CI	Mean (SD)	95% CI	p Value
p^# = ANOVA for repeated measurements, p* = Scheffe’s test. †Not available in fixed angle compensation mode.
Superior maximum (μm)	78.1 (9.6)	72.84 to 83.45	80.2 (8.4)	75.48 to 84.85	79.1 (9.3)	74.76 to 85.07	p^# = 0.167
Inferior maximum (μm)	82.9 (12.4)	76.04 to 89.80	83.7 (13.4)	76.28 to 91.15	83.7 (14.9)	75.46 to 91.92	p^# = 0.918
Normalised superior area	0.123 (0.029)	0.107 to 0.139	0.127 (0.023)	0.114 to 0.139	0.125 (0.021)	0.114 to 0.137	p^# = 0.477
Normalised inferior area	0.141 (0.024)	0.128 to 0.154	0.145 (0.028)	0.129 to 0.160	0.143 (0.030)	0.126 to 0.159	p^# = 0.585
Superior ratio	2.86 (1.27)	2.15 to 3.56	2.48 (0.98)	1.94 to 3.03	2.39 (0.77)	1.97 to 2.82	p_1–2 = 0.108 p_1–3 = 0.039 p*_2–3 = 0.881
Inferior ratio	3.00 (1.24)	2.31 to 3.69	2.57 (1.03)	2.00 to 3.14	2.48 (0.78)	2.05 to 2.91	p_1–2 = 0.054 p_1–3 = 0.017 p*_2–3 = 0.877
Superior/nasal ratio	2.36 (0.72)	1.96 to 2.76	2.23 (0.66)	1.86 to 2.59	2.23 (0.66)	1.86 to 2.60	p^# = 0.126
Maximal modulation (μm)	2.40 (1.06)	1.82 to 2.99	1.97 (0.88)	1.48 to 2.45	1.89 (0.61)	1.55 to 2.23	p_1–2 = 0.063 p_1–3 = 0.024 p*_2–3 = 0.906
Ellipse modulation (μm)	3.7 (1.89)	2.66 to 4.75	2.83 (1.11)	2.22 to 3.45	2.81 (0.99)	2.26 to 3.36	p_1–2 = 0.035 p_1–3 = 0.030 p*_2–3 = 0.997
Ellipse standard deviation	21.52 (3.85)	19.39 to 23.66	20.80 (3.50)	18.86 to 22.74	20.52 (3.07)	18.82 to 22.22	p^# = 0.301
Ellipse average (µm)†	55.50 (5.78)	52.30 to 58.70	57.35 (6.21)	53.91 to 60.79	56.84 (6.28)	53.36 to 60.32	p_1–2 = 0.021 p_1–3 = 0.115 p*_2–3 = 0.716
Symmetry	0.95 (0.10)	0.90 to 1.00	0.97 (0.12)	0.91 to 1.03	0.97 (0.12)	0.91 to 1.03	p^# = 0.476
The number	21.27 (10.83)	15.27 to 27.26	20.73 (11.8)	14.20 to 27.27	21.33 (11.18)	15.14 to 27.53	p^# = 0.837