Table 1.

The baseline ocular parameters and subsequent changes in the values at 1, 3, 6, 12, and 24 months after the wearing of OOK.

	Baseline	1 month	3 months	6 months	12 months	24 months
OSDI score	4.81 ± 6.64	7.48 ± 7.74	9.16 ± 9.43	11.40 ± 11.01	8.13 ± 8.19	6.21 ± 6.95
Meniscus heights	0.22 ± 0.06	0.25 ± 0.05	0.25 ± 0.06	0.24 ± 0.06	0.24 ± 0.04	0.24 ± 0.04
Corneal fluorescein staining scores	0.19 ± 0.43	0.54 ± 0.60	0.51 ± 0.63	0.64 ± 0.74	0.73 ± 0.55	0.56 ± 0.53
The 1st keratographic BUT	11.03 ± 5.53	12.49 ± 7.20	11.99 ± 6.84	11.10 ± 6.35	12.37 ± 5.41	11.73 ± 5.33
The average keratographic BUT	13.02 ± 5.39	14.41 ± 6.77	14.16 ± 6.48	13.31 ± 5.81	13.33 ± 5.33	12.49 ± 5.11
Lid margin abnormalities	0.25 ± 0.54	0.41 ± 0.53	0.37 ± 0.55	0.66 ± 0.66	0.58 ± 0.65	0.61 ± 0.61
Meibomian gland orifice scores	0.53 ± 0.82	0.68 ± 0.84	0.47 ± 0.65	0.58 ± 0.70	0.54 ± 0.65	0.53 ± 0.63
Meibomian gland lipid secretion scores	0.31 ± 0.56	0.49 ± 0.65	0.54 ± 0.70	0.56 ± 0.65	0.56 ± 0.65	0.51 ± 0.59
Difficulty of lipid excretions	0.42 ± 0.65	0.66 ± 0.76	0.54 ± 0.68	0.54 ± 0.68	0.54 ± 0.65	0.54 ± 0.65
Meibomian gland dropout scores	0.68 ± 0.51	0.68 ± 0.51	0.68 ± 0.51	0.68 ± 0.51	0.68 ± 0.51	0.68 ± 0.51