Table 1 Demographic characteristics of the study population.

From: Indications and outcomes of intraocular lens exchange at a tertiary ophthalmic center in Northern China from 2016 to 2024

Characteristic

Value

Eyes/patients (n)

243/233

Age (y)

Mean ± SD

50.05 ± 21.76

Range

5 to 82

Sex, n (%)

Male

153(65.67%)

Female

80(34.33%)

Eyes n (%)

Right

136(55.97%)

Left

107(44.03)

Bilateral IOL exchange, n (%)

10(4.12%)

Type of original IOL, n (%)

AC IOL

11(4.53%)

PC IOL

232(95.47%)

Follow-up (m)

Mean ± SD

32 ± 15.66

Range

4 to 63

Interval between PS and exchange (y)

Mean ± SD

6.64 ± 6.16

Range

0.01 to 30

  1. Data are presented as numbers and percentages, means and standard deviations (SD).
  2. y = years; n = number; PS = primary surgery. 
  3. AC = anterior chamber; IOL = intraocular lens; PC = posterior chamber; .