Short Tear Breakup Time Could Exacerbate the Progression of Presbyopia in Women

Table 4

Demographics of presbyopia groups.

	Low add power	Moderate add power	High add power	value
Number of cases	445	471	446
% of men	24.5	27.2	24.9	0.837
Age (y)				<0.001
Spherical equivalent (D)				<0.001
Astigmatic errors (D)				<0.001
Anisometropia (D)				0.141
Near add power (D)				<0.001
Intraocular pressure (mmHg)				0.075
Tear breakup time (s)				0.084
Corneal staining score				0.839
Schirmer test value (mm)				0.048
Tear strip meniscometry (mm)				0.010

Kruskal-Wallis test, except for % of men analyzed with Mann–Whitney test.