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. 2013 Apr;8(2):126–133.

Table 1.

Preoperative demographic and clinical characteristics

N (%)
Age
 ≤40 years 9 (27.3)
 >40 years 24 (72.7)
Sex
 Male 22 (66.7)
 Female 11 (33.3)
Duration of anti-glaucoma medications use
 ≤12 months 34 eyes (72.3%)
 >12months 13 eyes (27.7%)
 Mean duration: 11.5±10.6 months
 Median duration: 9 months
 Range: 1 – 60 months
Pre-operative IOP (mmHg)
 ≤21mmHg 10 eyes (21.3%)
 22-30mmHg 16 eyes (34.0%)
 31-70mmHg 21 eyes (44.7%)
 Mean IOP 31.9±12.2 mmHg
 Median IOP: 28 mmHg
 Range: 12-66 mmHg

IOP, intraocular pressure; N, number