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. 2013 Apr 20;97(7):812–815. doi: 10.1136/bjophthalmol-2011-301000

Table 1.

Visual acuity in all 107 children

WHO category Visual acuity (better eye) N Per cent LBS Per cent SEC database Per cent
Total SVI/BL 65 60.7 23 69.7 42 56.7
Blind (BL) NPL 10 9.3 6 18.2 4 5.4
Blind (BL) <3/60-PL 28 26.2 14 42.4 14 18.9
Severe visual impairment (SVI) <6/60–3/60 27 25.2 3 9.1 24 32.4
Visual impairment (VI) <6/18–6/60 42 39.3 10 30.3 32 43.3
Total VI/SVI/BL 107 100 33 100 74 100

LBS, Louis Braille School; NPL, no perception of light; PL, perception of light; SEC, Suriname Eye Centre.