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Table 1 Visual levels according to Brown 2002 [16]

From: Health state utilities in patients with diabetic retinopathy, diabetic macular oedema and age-related macular degeneration: a systematic review

Description of vision

Visual acuity

Good reading vision

20/20 – 20/25

Legal driving vision

20/30 – 20/40

Moderate visual loss

20/50 – 20/100

Legal blindness

≤ 20/200

  1. This table displays the reported visual acuity classes by Brown et al. [16]. This classification was used because it was the most widely reported in the available literature and also provided meaningful interpretation of visual impairment.