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Table 1 Clinical data of membranous CNLDO patients

From: Dacryoendoscopy-assisted incision of Hasner’s valve under nasoendoscopy for membranous congenital nasolacrimal duct obstruction after probing failure: a retrospective study

Item

 

Number

Percentage

Gender

Male

20

46.51%

Female

23

53.49%

Age (years)

 range

1 to 13

  

 mean (standard deviation)

3.28 (2.86)

  

Sides (cases)

Left

22

51.16%

Right

12

27.91%

both

9

20.93%

Time of previous probing

 range

1 to 8

  

 mean (standard deviation)

1.96 (1.53)

  

1

32

61.54%

≥2

20

38.46%

Surgical success (eyes)

Yes

52

100.00%

No

0

0.00%

Complications (eyes)

Yes

0

0.00%

No

52

100.00%