A Comparison of Topical or Retrobulbar Anesthesia for 23-Gauge Posterior Vitrectomy

Table 2

Baseline patient characteristics and indications for vitrectomy by treatment assignment.

	Anesthesia
	Topical	Retrobulbar
	31	32
Sex-number (%)
Male	19 (54.2)	21 (55.2)
Female	16 (45.8)	17 (44.8)
Age (years)
Mean	59.3	59.5
Range	47–71	43–76
Indications for PPV
Vitreous hemorrhage	12	14
Proliferative diabetic retinopathy	8	6
Rhegmatogenous retinal  detachment	7	8
Dislocated crystalline or intraocular; lens	5	5
Epimacular membrane	2	3
Macular hole	1	2
Duration of surgery (minutes)
Mean	47.1	49.2
Range	35–73	38–82