Table 1

Characteristics of patients in the intracameral lidocaine 1% and balanced salt solution (BSS) groups

CharacteristicsIntracameral lidocaine (n=277) No. (%)Intracameral BSS (n=229) No. (%)p-Value (χ2)
Age
 Mean (SD), years66.8 (10.7)67.5 (10.3)0.468 (t test)
 Median (range), years68.0 (30–92)68.0 (35–89)
Gender
 Male142 (51.3)108 (47.2)0.373
 Female135 (48.7)121 (52.8)
Race
 Chinese237 (85.6)200 (87.3)0.547
 Malay16 (5.8)12 (5.2)
 Indian21 (7.6)12 (5.2)
 Eurasian3 (1.1)5 (2.2)
Duration of surgery
 Mean (SD), min14.5 (6.8)14.5 (6.1)0.981 (t test)
 Median (range), min15.0 (2–60)15.0 (1–50)
Operated eye
 Right137 (49.5)118 (51.5)0.656
 Left140 (50.5)111 (48.5)
Previous cataract surgery
 Yes120 (43.3)77 (33.6)0.028
 No157 (56.7)152 (66.4)
Preoperative best-corrected visual acuity (Snellen scale)
 20/20–20/5090 (32.5)72 (31.4)0.858
 20/60–20/100105 (37.9)84 (36.7)
 Worse than 20/10082 (29.6)73 (31.9)