Table 2.

Summary of reviewed articles for the detection of SARS-CoV-2 in tears or conjunctival secretions.

References	Participants	Demographic characteristics	Positive Detection rate	Ocular manifestations	Detection phase	Duration of positive detection
Fang et al. (19)	32	F:M=1:1Mean age=41 (34–54)	15.6%	None	During admission time	N.A.
Zhou et al. (13)	67	F:M=1.68 Mean age=36 (22–78)	1.5% positive 3.0% suspected	1.5%	During admission time	N.A.
Zhang et al. (17)	72	F:M=1.00 Mean age=59	1.4%	2.8%	Before and during admission time	Conjunctival swab turned positive 1 day after conjunctivitis, and became negative at day 9
Xu et al. (18)	30	F:M=1.14 Mean age=48	0%	3.3%	During admission time	N.A.
Deng et al. (20)	114	F:M=0.84 Mean age=61 (10–88)	0%	0%	During admission time	N.A.
Xia et al. (16)	30	F:M=0.43 Mean age=55 (13–83)	3.3%	3.3%	During admission time	Detected at day 2 and day 4 after the onset of symptoms