Table 3 Comparison of postoperative comfort, irrigation and efficacy of patients with lacrimal passage obstruction between the two groups.

From: To investigate endoscopic membranous nasolacrimal duct resection combined with retrograde lacrimal stent placement in the treatment of extremely inferior lacrimal duct obstruction

Group

Num

Comfort classification

Distribution of lacrimal duct irrigation

Lacrimal duct irrigation half a year after operation

None

Light

Medium

Acute

1

2

3

4

1

2

3

4

Experimental group

27

24

2

1

0

20

5

1

1

20

2

2

3

Control group

27

18

5

3

1

21

3

2

1

21

3

1

2

Z

 

Z = − 1.978

Z = − 0.220

Z = − 0.686

P

 

P < 0.05

P = 0.826

P = 0.404

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