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Table. 2.

Table. 2.

Percentage of oil and air presence and number of silicone oil droplet in agitation and no agitation group, according to the type of syringe

Group p-value

Agitation (Group 1+3) No agitation (Group 2+4)
Presence of oil
Syringe 1 20/20 (100) 6/20 (30) < 0.001*
Syringe 2 3/20 (15) 0/20 (0) 0.231*
Syringe 3 13/20 (65) 3/20 (15) 0.003*
Presence of air
Syringe 1 6/20 (30) 5/20 (25) 1.000*
Syringe 2 4/20 (20) 2/20 (10) 0.661*
Syringe 3 9/20 (45) 3/20 (15) 0.082*
Number of silicone oil droplets
Syringe 1 9.7 ± 4.5 0.7 ± 1.3 < 0.001
Syringe 2 0.4 ± 1.0 0.0 ± 0.0 0.076
Syringe 3 1.8 ± 1.7 0.2 ± 0.5 0.001

Values are presented as mean ± standard deviation or number (%). Syringe 1 = Shinchang Medical Co.; Syringe 2 = Becton, Dickinson; Syringe 3 = Sungshim Medical Co.

*Fisher’s exact test; p-values < 0.05 that are statistically significant; Mann-Whitney test.

J Retin 2021;6:75-83 https://doi.org/10.21561/jor.2021.6.2.75
© 2021 J Retin