Table 3.

Descriptions of included studies for clinical sign and symptoms of eye disease.

Author	Eye symptom scores		Eyelid finding scores		Conjunctival hyperemia		Schirmer test (mm)		Meibomian gland secretion		TBUT (sc)		Ocular surface staining scores
	Before Mean ± SD (median)	After Mean ± SD (median)	Before Mean ± SD (median)	After Mean ± SD (median)	Before Mean ± SD (median)	After Mean ± SD (median)	Before Mean ± SD (median)	After Mean ± SD (median)	Before Mean ± SD (median)	After Mean ± SD (median)	Before Mean ± SD (median)	After Mean ± SD (median)	Before Mean ± SD (median)	After Mean ± SD (median)
Bakar et al.8	2.22 ± 1.98 (2.00)	0.28 ± 0.15 (0.00)	2.72 ± 1.01 (3.00)	1.44 ± 0.98 (1.00)	1.39 ± 0.60 (1.00)	0.94 ± 0.72 (1.00)	19.11 ± 7.98 (20.0)	23.72 ± 8.09 (25.0)			7.78 ± 3.52 (8.00)	9.06 ± 2.41 (10.5)	0.88 ± 0.90 (1.00)	0.88 ± 0.83 (0.00)
Haque et al.7	2.22 ± 0.72 (2.00)	0.82 ± 0.96 (0.0)	2.0 (0.00) 2.0	1.2 (0.47)1.0	1.8 (0.50) 2.0	1.3 (0.56)1.0					1.88 ± 0.57 (1.76)	1.64 ± 0.73 (1.39)	1.36 ± 0.66 (1.00)	1.3 ± 0.57 (1.00)
Luchs15	3.2 ± 0.65	1.1 ± 0.64	1.97 ± 0.77	0.67 ± 0.61					2.5 ± 0.92	0.8 ± 0.43
Yildiz et al.16	2.33 ± 0.49	0.62 ± 0.65	2.20 ± 0.56	0.61 ± 0.65	1.80 ± 0.56	0.47 ± 0.52	17.73 ± 3.56	20.46 ± 1.98	2.13 ± 0.64	0.54 ± 0.52	7.87 ± 1.51	8.39 ± 1.26	1.60 ± 0.51	1.00 ± 0.58
Opitz and Tyler17	2.73 ± 0.89	2.21 ± 0.78					11.54 ± 7.33	14.31 ± 9.53	2.44 ± 0.65	1.62 ± 0.57	4.37 ± 1.67	6.58 ± 2.84	3.65 ± 3.06	0.62 ± 0.80

TBUT (sc): the tear breakup time in seconds; SD: standard deviation.