The Pharmacological Mydriatic Pupil-to-Limbal Diameter Ratio as an Intuitive Predictor for the Risk of Intraoperative Floppy Iris Syndrome

Table 1

Dilated pupil diameters, pupil-to-limbal diameter (PL) ratios, and intuitive PL ratios (median (Q1, Q3)) with different IFIS severity grades in the α1-ARA group.

Parameters	Grade 0	Grade 1	Grade 2	Grade 3	value
Eyes, n (%)	12 (33)	16 (44)	4 (11)	4 (11)
Dilated pupil diameter, median (Q1, Q3)	7.3 (7.3, 7.6)	6.4 (6.0, 6.7)	5.2 (4.9, 5.7)	5.6 (4.7, 5.9)	<0.01
PL ratio, median (Q1, Q3)	65.0 (60.9, 69.0)	53.0 (50.1, 56.1)	46.6 (43.1, 50.9)	51.3 (41.7, 56.7)	<0.001
Intuitive PL ratio, median (Q1, Q3)	68.3 (66.3, 73.1)	52.5 (45.0, 60.3)	40.5 (33.8, 49.4)	47.0 (36.1, 55.4)	<0.001

Kruskal–Wallis test.