Estimation of Eyelid Pressure Using a Blepharo-Tensiometer in Patients with Functional Nasolacrimal Duct Obstruction

Table 1

Demographic characteristics of patients with functional nasolacrimal duct obstruction and age-matched controls with healthy eyes.

	Normal control	FNLDO^a patient	P value
Age (years)	61.2 ± 8.9	61.4 ± 8.8	0.940
Female, n (%)	26 (72.2)	28 (77.8)	0.786
Right side, n (%)	20 (55.6)	21 (58.3)	1.000
Body mass index (kg/m^2)	23.9 ± 2.6	22.9 ± 1.9	0.094
Lower eyelid laxity (mm)	5.25 ± 1.11	5.67 ± 1.45	0.245
Lower eyelid laxity ≥7 mm, n (%)	5 (13.9)	10 (27.8)	0.245
Lower eyelid pressure (mmHg)	16.1 ± 0.6	14.0 ± 0.4	0.008

^aFunctional nasolacrimal duct obstruction.