Table 4: Change in the mean UDVA from the pre-operative visit to one year post refractive surgeries (LASIK, PRK) for patients with myopia and myopic astigmatism.

	LASIK Myopia	PRK Myopia	LASIK Myopic Astigmatism	PRK Myopic Astigmatism
Number of eyes	53	53	273	217
	mean	mean	mean	mean
Pre-Op UDVA	0.13	0.22	0.12	0.20
Pre-Op CDVA	1.007	1.009	0.9954	1.039
UDVA 1 day	1.0736	0.8472	1.0201	0.7419
UDVA 1 week	1.083	0.9736	1.0304	0.9124
UDVA1 month	1.0698	0.9925	1.0319	1.0041
UDVA 3 months	1.0226	1.0604	1.0110	1.0272
UDVA 6 months	1.0245	1.0302	0.9960	1.0217
UDVA year	1.0094	1.0151	0.9945	1.0212