Table 2.

Characteristics of the four blind groups and sighted

CBPR (N = 22)EBPR (N = 11)LBPR (N = 10)LBNR (N = 14)Sighted (S) (N = 89)
Median age (years)52.549.647.759.053.5
Age range (years)20.2–74.223.1–71.021.2–65.719.5–72.020.0–78.1
Women, men17, 55, 64, 66, 850, 39
NLP, LP15, 710, 12, 83, 11
OHR, THR12, 105, 66, 4
  • NLP, No light perception; LP, residual light perception; OHR, one-hand reader; THR, two-hand reader. The bottom three rows list numbers of participants.