Table 1

Demographic data

No % 95% CI (%)
Patients1479100
Type of anaesthetic
 GA25817.415.1–19.8
 LA122182.681.7–83.5
Previous VR surgery
 LA122116.615.5–17.7
 GA25921.218.6–23.7
Local anaesthetic data
Type of LA
 Intracone16413.410.7–16.1
 Peribulbar13010.57.9–13.3
 Combination92775.974.5–77.3
Anaesthetic agents used
 Lignocaine + bupivacaine40833.432.1–34.8
 Lignocaine + HCO927.56.8–8.3
 Lignocaine + bupivacaine + HCO62050.849.3–52.2
 Lignocaine + ripovcaine1018.37.5–9.1
Type of operation
 Vitrectomy43635.733.4–38.0
 Retinopexy +/− vitrectomy54544.742.5–46.7
 Scleral buckling23819.516.9–22.1
Pain on injection
 No pain12910.57.8–13.2
 No response90173.772.3–75.7
 Mild17414.211.6–16.9
 Severe171.3−1.4–4.2
Pain of operation
 No pain108588.988.0–89.8
 Sensation695.75.0–6.3
 Mild pain574.84.1–5.3
 Moderate pain70.570.36–0.79
 Severe pain20.20–0.3
Sedation
 No sedation112692.291.4–93.0
 Sedation957.85.0–10.5
Any kinesia877.16.4–7.9
Chemosis615.02.2–7.8
Additional LA18816.915.8–19.3
Mean age of patients (years)
 All63.5Range 10–103
 LA63.5Range 19–103
 GA45.9* Range 10–87
p<0.01