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. 2006 Oct 11;91(3):296–298. doi: 10.1136/bjo.2006.104604

Table 2 ORs for hallucinations with acuity and contrast sensitivity.

OR and 95% CI
Acuity ⩽6/24‐⩾6/36 OR 0.96, CI 0.4, 2.2
Acuity ⩽6/60‐⩾1/18 OR 0.90, CI 0.4, 2.1
Acuity ⩽1/25 (poorest) OR 0.30, CI 0.1, 1.3
Contrast sensitivity log 1.20,1.05,0.90 OR 4.1, CI 1.1, 15.9
Contrast sensitivity log 0.75,0.60,0.45 OR 10.5 CI 2.6, 42.1
Contrast sensitivity log 0.30,0.15,0.00 (poorest) OR 28.1, CI 5.6, 140.9