Table 2

Refractive errors pre-lamellar keratotomy and at 3 months post-lamellar keratotomy

	Spherical equivalent		Sphere		Cylinder		Axis		Mean			K difference		K axis
Eye	Pre	3 Months	Pre	3 Months	Pre	3 Months	Pre	3 Months	K Pre	K 3 Months	K Change	Pre	3 Months	Pre	3 Months
1	0.00	0.00	4.25	1.75	−8.50	−3.50	45.00	40.00	45.07			7.03		60.00
2	−8.50	−6.00	−4.50	−3.00	−8.00	−6.00	162.00	170.00	49.61	47.72	−1.89	6.19	6.88	150.00	170.00
3	−2.50	−2.25	0.75	1.25	−6.50	−7.00	20.00	22.00	44.40	46.64	2.24	6.39	7.27	20.00	20.00
4	1.50	0.50	5.50	4.50	−8.00	−8.00	176.00	170.00	45.63	45.62	−0.01	9.66	9.65	170.00	170.00
5	−4.50	−5.25	−0.50	−1.00	−8.00	−8.50	77.50	60.00	49.60	48.46	−1.14	7.47	7.04	70.00	60.00
6	−16.25	−16.00	−13.00	−11.50	−7.50	−9.00	30.00	30.00	50.96			8.13		20.00
7	−0.50	1.00	1.75	2.50	−4.50	−3.00	45.00	10.00	47.57	47.95	0.38	3.85	2.71	25.00	25.00
8	−7.50	−9.25	−4.50	−9.25	−6.00	−0.05	70.00	30.00	48.70	49.78	1.08	4.50	0.80	70.00	40.00
9	−10.50	−11.00	−5.00	−8.00	−11.00	−6.00	110.00	100.00	50.40	50.32	−0.08	4.68	4.95	100.00	100.00
10	−9.50	−8.50	−5.25	−5.50	−8.50	−6.00	80.00	80.00	47.52	48.10	0.58	5.84	5.00	80.00	70.00
11	−10.50	−9.62	−9.00	−6.00	−3.00	−7.25	35.00	0.00	51.00	53.54	2.54	1.48	2.30	0.00	150.00
12	−8.00	−9.00	−5.25	−6.25	−5.50	−5.50	120.00	130.00	48.42	48.43	0.01	3.83	4.66	130.00	130.00
13	0.00	1.25	2.50	5.00	−5.00	−7.50	105.00	100.00	42.16	41.68	−0.48	6.78	7.77	100.00	100.00
14	−2.00	−1.25	0.75	1.50	−5.50	−5.50	20.00	15.00	44.47	44.27	−0.20	6.27	7.54	20.00	20.00
15	−3.50	−4.50	2.00	4.00	−11.00	−17.00	110.00	120.00	45.87	46.03	0.16	9.65	12.84	110.00	120.00
16	−3.25	0.50	0.00	1.50	−6.50	−2.00	145.00	105.00	46.86	43.27	−3.59	5.73	5.58	120.00	110.00
17	−4.25	−2.00	−1.50	−1.00	−5.50	−2.00	10.00	0.00	45.26	43.60	−1.66	4.90	5.19	30.00	10.00
Mean	−5.28	−4.79	−1.82	−1.74	−6.97	−6.11	80.03	69.53	47.26	47.03	−0.14	6.02	6.01	75.00	86.33
SD	4.79	5.10	4.87	5.15	2.15	3.78	52.06	57.09	2.59	3.08	1.55	2.10	2.99	51.05	55.76
p Value		0.19		0.86		0.31		0.02		0.74			0.62		0.54